Keep It Going, Nick

This ESPN Insider article from Football Outsiders' Scott Kacsmar has nice things to say about Nick Foles, especially noting that even by advanced metrics, his interception-defying skills have been legendary. Plus, add this to that bounce in your step ahead of Saturday's playoff game:

Some simple math can quantify how balanced the Eagles [offense is]. I calculated averages for yards per pass (including sacks) and yards per run and compared them to the league averages, then added the two averages together.

The 2013 Eagles are a balance-adjusted 2.20 yards per play above average, which ranks 18th out of 1,285 teams since 1970. Of the 17 teams ranked ahead of Philadelphia, 12 won at least one playoff game (3-3 in the Super Bowl).

Gotta like those odds.

All The All-22 You Need For The Wild Card Round

There has been a wealth of coaches tape coverage this season that I've been woefully negligent about linking to from this blog. Hopefully all of you have caught on without my help, but make sure to catch up on the work of our esteemed Philly analysts:

  • Sheil Kapadia has two All-22 posts this week. The first is on the introduction of the sweep run, with narrated insights from the offensive line. The second looks back at Mychal Kendricks' performance against Jimmy Graham in 2012 and against other tight ends in general. That'll be a key matchup in Saturday's wild card game.
  • Derek Sarley, meanwhile, took his usual scattershot approach over at the Daily News/Philly.com. Looks like Monte Kiffin's main advice to his defense was to hold early and often, but Nick Foles bears some responsibility for the offense's misfires as well. The QB missed opportunities and made some surprisingly bad calls on packaged plays. Hopefully that gets worked out this week.
  • Last but not least, Ryan over at Chip Wagon gave us more diagrams of new packaged plays and run game tweaks.

Is The Eagles Offensive Line Quietly Even Worse Than Last Year?

The Eagles rushing attack is pretty great.

The offense leads the league in total rushing yards (2140) and average per carry (5.0). Football Outsiders grades them out as the top DVOA rushing offense with +20.1%, head and shoulders above second-place Dallas at +10.9%. A piece of that action has come on quarterback runs. Michael Vick is second in the NFL in rushing DYAR despite having only played in parts of six games. Banged up at age 33, he has the highest rushing DVOA of his career, a ridiculous +68.1%. Even slowpoke Nick Foles places 7th in rushing DYAR and 9th in DVOA, showing the power of the zone read.

But the bulk of the rushing offense comes down to one man: LeSean McCoy. The first back to cross 1000 yards, he's second in the league in DYAR and has already surpassed his personal season rushing record. During the Snow Bowl, he set a new franchise single-game rushing record. However, he also took some flak last month from his coach Chip Kelly, who told the press that he pushes Shady to not dance around quite so much:

"I think LeSean is trying to press too much and trying to hit a home run on every play instead of letting it develop," Kelly said.

The comment was fairly innocuous, as any observer could point out a couple plays every game where McCoy tries to out-juke just one too many defenders, or cut back one too many times. But ultimately McCoy is a Barry Sanders-esque force of nature in the backfield, and he's bailing out Chip's offense and his blockers up front much more than the other way around.

See, the truth according to the advanced stats runs somewhat contrary to the conventional wisdom. Not that anyone is particularly discounting McCoy's contribution to the offense. But there has been a lot of praise heaped on the zone read and a rejuvenated offensive line for the success of the run game. It's not completely misplaced. Certainly we've seen the Jason Peters, Evan Mathis and Jason Kelce dominate blocks at times. Todd Herremans appears to be fading with age, and Lane Johnson makes some rookie mistakes, but they're important athletic pieces in the blocking scheme.

But ultimately, the advanced offensive line stats don't look particularly good:

Since 2010, when McCoy took over as the featured back, the rushing attack has been stellar. High per-rush averages, great power success (that's short yardage, high leverage plays), and elite 2nd level and open field gains. The consistency of those stats is shocking compared to the overall decline in Football Outsiders' signature stat of Adjusted Line Yards. That metric weights runs by distance, attempting to isolate the offensive line's performance over the early yards vs. the largely running back-driven yards down the field.

McCoy has always generated a healthy performance bump above what his offensive line provides him, but this year is the greatest difference yet. Some of that is a higher rushing average than the last two years, but Eagles running backs are actually behind their 2010 pace. The difference is that the offensive line has only "generated" 3.47 yards per rush, 0.6 yards per rush less than 2010. The gradual decline over the last three years comes despite no major change in power or stuffed rank. And the 2nd level and open field yards are as good as ever for McCoy.

Plus, the offensive line isn't doing so hot in pass protection either. The adjusted sack rate is actually worse than last year, despite a distinct lack of starting games by noted turnstile Danny Watkins.

None of these stats are perfect, but the overall picture isn't jiving with the public narrative of a rejuvenated offensive line. And that's partially to be expected. The Eagles had the eight-oldest starting offensive line coming into the season, despite starting a 23-year-old rookie. The Giants are the only other team to rely on three starters over 30. Normally you would worry about injuries with an aging offensive line, but due to either #sportscience or good luck, the Eagles front five have been remarkably injury-free. They just haven't been as productive.

Despite controlling their own playoff destiny, this team has a lot of obvious holes. But when everyone's screaming for more pass rushers and defensive backs this offseason, don't be surprised if the Eagles make a push for young offensive line help. It's secretly one of the team's largest problems.

The Eagles Still Aren't Great, But That's OK

Before the season started, I set my expectations for 2013 at a reasonable level: an improvement from last year's disaster squad and a foundation built for future growth. As I said then, most teams as bad as the Eagles improved, on DVOA terms, by an average of about 12%. I anticipated something along those lines, with a slight record improvement but certainly no mention of playoffs.

Obviously, I was wrong. Before Sunday's loss, the Eagles had improved by nearly 33% in DVOA, one of the best turnarounds ever. That will cool slightly this week, but the team still has the inside track on a playoff spot, something most people (including Jeffrey Lurie) never expected to happen so soon.

But Sunday's game reminded us that this squad -- or at least half of it -- is still a work in progress. Chip Kelly's offense is gangbusters, even if it can sputter out for stretches. On a "bad day," Nick Foles threw for 428 yards on 30 for 48 attempts, 3 TDs and 1 INT. Plus he ran the ball 5 times for 41 yards to boot. LeSean McCoy only got 8 carries, but still finished with over 100 yards from scrimmage. DeSean Jackson had nearly 200 receiving yards plus an end-around touchdown called back due to penalty. Oh, and rookie tight end Zach Ertz ended the day with 57 yards on 6 receptions, including a one-handed TD grab. No big problems here.

The defense is still messy, though. As I've said before, you don't have to be an elite quarterback to find the holes in Billy Davis' scheme (Hint: look for the safeties). A smart, patient, accurate player will pick this secondary apart. That's what happened when the Eagles D was skinned alive during the three-game stretch against Philip Rivers, Alex Smith, and Peyton Manning. Since then, during the team's 7-2 run, opponents never scored more than 21 points. 

The great nine-game run leading up to Sunday seemed to be the defense gelling, but most of it was the horrendous, mistake-prone quarterbacks the Eagles faced. Only two of the QBs the Eagles faced in that span have positive DVOA on the year, and they played one of those in a blizzard. Matt Cassel could easily have been another one of those lightweights, but he did his best 2008 impression, throwing for the 4th-most yards of his career. That came despite the Eagles front seven holding the Adrian Peterson-less Vikings to just 2.4 yards per carry.

Worth noting: Football Outsiders never bought into the Eagles defensive turnaround. While they were bend-but-not-breaking their way to sub-22 point totals, the defense allowed over 350 yards in all but two of the last 9 games. Coming into Sunday, the team ranked 22nd in defensive efficiency, versus 3rd on offense. Even with Denver and Kansas City as past opponents, the Eagles faced the 27th-weakest schedule and registered the highest level of inconsistency in the league prior to this week. Including week 15, the Eagles have the lowest point differential of any division leader.

So again, the Eagles aren't great. If their schedule weren't so easy, including six games against the criminally ugly NFC East, I imagine the team would have finished closer to my "return to 1999" prediction than their current possible outcome of 8-10 wins. If the Eagles win the division, which I now expect them to do either against Chicago with the Cowboys losing again, or in Dallas the week after, they will have vastly overperformed -- despite being only a mediocre overall team.

But that's OK. Even if the Eagles get rolled over by a better wild card team like San Francisco, Carolina, or New Orleans, the season will have been a smashing success, and one to build on in 2014. Kelly's offense still has room to grow next year, and the defensive reconstruction will continue. Until then, enjoy this #housemoney season.

Why Nick Foles Is Better Than Ever (But Can't Stay This Good)

I call him SuperNick. The man who threw seven touchdown passes in little more than three quarters of play deserves such a cartoon moniker. But how did "one of the better backups in the NFL" become in one afternoon the guy who plays what "might have been the best three-quarters of a game we've ever witnessed"?

The simple answer is, he didn't. With the notable exception of four horrendous quarters against Dallas where he looked like he sustained a concussion before he ever got to the stadium, Foles has looked good all year. Andy Reid and Marty Mornhinweg may have the quarterback guru reputation, but Chip Kelly's offense has been much friendlier to QBs than he gets credit for. Why? Because his spread-option, up tempo, zone read running attack forces opponents to pick their poison. Kelly has repeated versions of this quote for years:

"They can't defend it all. I'm really happy with how we threw the ball. If you're going to devote nine guys and try to stop the run, God bless you, and we'll throw it."

Since early in the season, defenses have made their choice: plug the box with seven or eight players and keep just one safety back deep. That often leaves man-to-man coverage on the outside against DeSean Jackson and Riley Cooper. Those are golden matchups for a quarterback, but the Eagles haven't executed. As Sheil Kapadia wrote after the Cowboys game, "An average QB performance likely would have yielded 300+ yards and a score in the 20s." Unfortunately, Foles couldn't make that happen. Neither could Matt Barkley, as Derek Sarley showed last week.

Jump ahead to the Raiders game, and Foles finally started taking advantage of those one-on-one matchups, just as he did against the Buccaneers. Fran Duffy diagrammed all 7 TDs, and over and over you saw Cooper and Jackson beating man coverage -- and passes actually finding them. The gains were comical. Check out how Foles' numbers on long passes differ from last year (stats courtesy Pro Football Focus):

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To start with, Foles is attempting about 50% more long passes than he did with Andy Reid at the helm. That's a big jump. His current rate of 16.1% is near the top of the league, after placing in the bottom half last season. This change is entirely about the offense; Michael Vick has also seen a spike in his deep balls, bringing him back to 2010 levels after declines the last two years.

But where things start to get crazy is the long ball effectiveness. Foles completed only 36% of passes 20 yards or longer in 2012. That's up to nearly 53% so far this year. Long ball completion percentage is a huge indicator of success. Look at the list of QBs who posted 48% or above last year: Kaepernick, Rodgers, P. Manning, Newton, Griffin, Brees, Wilson. That's elite territory.

Can Foles keep that completion rate up? Unclear. While there may be some regression to the mean, I'm actually bullish on this front. Kelly's offense seems to be giving his QBs a boost. Vick has also seen a double-digit jump in 20+ yard completion rate, so Foles' numbers may not be an aberration.

Touchdown and interception rates are another matter. Foles is averaging an insane four TDs for every ten long passes he throws. Eight out of his ten completions at that distance have gone for six points. He also has no interceptions at any distance all year -- the only quarterback with more than 75 passes who can say that. (No fumbles either.)

Even if the completion percentage stands, those most certainly won't. Last year, RGIII led the league in touchdown rate on passes of 20 yards or more -- at only 19.4%. Even if defenses don't significantly adjust their coverage schemes (although I expect they'll have to back out of the box more now), Foles simply can't count on the type of luck he's had so far with defenders falling down, receivers wide open, and more. He also eventually will start throwing interceptions. Last year he threw them on just 1.9% on all throws, but Football Outsiders' adjusted interception rate showed a more pedestrian 4.2% after accounting for defenders dropping would-be picks.

The first takeaway here is that SuperNick's current outsized numbers will almost certainly come back to Earth. He may be good the rest of the year, but he won't be that good. The second takeaway is more important, though. Foles' improvement is only over a small sample, but it may not be an anomaly. Kelly is putting his quarterbacks in a great position to succeed, and when defenses change to prevent that, it will only give McCoy more room to run. If the Chip's scheme looks this good with competent QB play from a limited upside guy like Foles, think about what it might do with a true top-tier talent at the position.

How Chip Kelly Uses The Run To Post Near-Record 3rd Down Efficiency

Here's a stat you probably didn't know: this year's Eagles offense is on pace to register one of the smallest three-and-out percentages in recent history. Through six games, Football Outsiders clocks the Eagles as having three-and-outs on only 10.8% of all drives. If they can keep that pace up, it would tie them for second-best among all teams over the last 16 years (the entire period FO has accounted for this stat).

There are a number of things that help Chip Kelly's offense avoid the dreaded three-and-out. Part is just being tremendously efficient across the board. The historical team the Eagles are tied with right now is the 2001 St. Louis Rams, an offensive juggernaut that rode to a 14-2 record and Super Bowl appearance. Like those Rams, the 2013 Eagles rank second overall in offensive DVOA, with both passing and rushing offenses in the top 5. When you register a full 1.2 yards more per play than the average NFL offense, you're going to have fewer dead drives.

But that's not all. The number two ranked team in three-and-out percentage is the Carolina Panthers, and their offense is middling. There's another key to Kelly's success in this area, and it's relatively simple: he runs the ball more on third down and short.

On third down with 1 or 2 yards to go, NFL teams run just slightly more than they pass this year: 52%. This is odd, because running is significantly more effective. 66% of all runs from this distance convert a first down, while only 51% of passes do. Such odds would be even more favorable for the Eagles offense. The offensive line has looked good so far (although only 3.81 adjusted line yards), but more importantly LeSean McCoy is a beast. Kelly clearly knows this. He has called run plays in those situations 84% of the time, far more than any other team -- and has an 81% success rate to show for them.

The tendency extends to third downs from 3 to 5 yards out as well. For most NFL offenses, this is a straight passing down. A quarter of teams have yet to call a run in this situation, and the overall rush rate is a measly 10%. This seems to be a rational decision for most teams. At this run-pass ratio, the success rate for both has hit an equilibrium of about 47%.

Kelly, however, has called runs on 35% of these plays. That percentage is exceeded by only one other team: the Panthers, who we mentioned above. Both teams have succeeded with this strategy. The Panthers, with Cam Newton and a couple of successful backs, have been successful on 60% of their runs. The Eagles have converted a first down on over 70% of such plays.

This isn't new territory. Brian Burke wrote about how NFL teams should run more on third and short back in 2008:

On 3rd and 1, offenses scored an average of 2.38 points if they ran, and an average of 2.24 points if they passed. The difference of 0.14 points is remarkably close to the 0.12-point theoretical estimate calculated above.

The differences are even bigger for 3rd and 2 and 3rd and 3 situations. The advantage of running is 0.45 and 0.31 expected points respectively—convincing evidence that offenses should be running more often on 3rd and short.

With the numbers -- and an elite back -- to support him, Kelly's play calling has been spot on. The Eagles have converted 74% of all third downs from 1-5 yards. That's the highest rate in the league, and is a key factor keeping their up tempo drives rolling.

Why The Foles-Vick QB Controversy Doesn't Matter

As many of you may remember, or at least can determine by the site headline above, this blog was founded on a quarterback controversy. Not to be hipster about it, but that one, between Donovan McNabb and Kevin Kolb, mattered a lot more. It was about the future of a franchise, turning over the reins to a player who had been groomed for success and jettisoning the veteran who led the team for a decade.

This one between Michael Vick and Nick Foles pales by comparison -- largely because I don't think the outcome matters much.

Let's look first at the performance this season. Who gives the Eagles the best chance to win against the Cowboys on Sunday (assuming Vick is back to 100% health)? Again, in broad strokes I'm not sure it matters. Chip Kelly has shown a remarkable ability to adapt his offense to fit the strengths of his quarterback.

With Vick starting through the first five weeks, Kelly called a heavy does of read-option. I've never seen a running game perform as well as the Vick-LeSean McCoy combo. They helped the Eagles to a dominant #1 rank in rushing DVOA. Vick has also been solid through the air. He's only completing 54% of his passes, but his interception rate so far is a career low (1.5%) and his yards per attempt a career high (9.0).

With Foles at the helm on Sunday, Kelly pared down the option plays in favor of straight power runs. McCoy finished with 116 yards on 25 carries, down from his rushing average in the previous games. Less explosive but still effective, those runs set up short passes that catered to Foles' accuracy. The second-year QB ended up with the best DYAR performance this week. As Football Outsiders acknowledged, that came with a lot of help from his teammates converting dump offs into long gains -- and Foles completed a much higher percentage of long balls than he did last year. Still, a great performance.

My gut reaction, based on the caveats above, is that Vick is still the better option to win right now. But the difference may be marginal. The offense ranked 5th in overall DVOA through the first five games. Then with a different QB, it put up 31 points against the 3rd-best DVOA defense. Regardless of who starts under center (or in shotgun), poor performance on defense and special teams remain the limiting factors for this team in 2013.

As for 2014 and beyond, neither Vick nor Foles is the answer. Vick is 33, constantly banged up, and has no more improvement left in him. Foles is young but limited. Not only is he largely immobile (QB draw aside), but his passing skills rely on the low upside combination of poise and short passes. His arm is weak and interception rate last year was bouyed by drops. Long term, that's not a combination worth investing in.

What the Eagles need will likely come in the 2014 draft: a high-upside passer and runner who can orchestrate the entirety of Kelly's offense for years to come. Whether that's a Marcus Mariota, Tajh Boyd, or even Johnny Manziel, the next generation Chip QB hasn't arrived yet. Arguing about who should start on this year's transitional squad is a waste of energy.

Is The Eagles Defense One Competent Safety Away From Success?

Alright, no.

But as I was watching the Eagles-Giants game on Sunday, I was drawn to this question. The Eagles defense has problems across the board. The new corners can at least tackle better than their predecessors, but remain inconsistent in coverage. Even at their best, neither Cary Williams nor Bradley Fletcher scares an opposing quarterback. Meanwhile, the front seven is a transitioning mess. Sopoaga barely shows up, and two-gapping hides last year's stud Fletcher Cox. Connor Barwin has been solid, but Trent Cole is hit-or-miss at OLB. Mychal Kendricks makes terrifically athletic plays, then falls down in coverage. The responsibilities in the run game are unclear. The pass rush is nonexistent, which has led to the bizarre move of making Brandon Boykin a rush linebacker.

This is all granted. It's a bad defense with a lot of personnel and scheme questions. But unlike the offensive side of the ball, where a great quarterback or running back can carry a team at times, defense often seems to be about your weakest link. A smart, patient, accurate quarterback can find your weakness and exploit it. Such was evident against the Peytons, but I'm not sure how much there is to learn from a drubbing at their formidable hands.

The Elis posed a much less dangerous threat. The Giants offense only scored 7 points in the two previous games. Yet they put up three times that on Sunday. Why? Again, there are many problems with this defense. The front seven, most notably, failed to register a sack until the end of the game, against a banged-up Giants offensive line.

But looking at the tape and the numbers, I'd single out safety as by far the biggest problem. The Giants only had three scoring drives. The officials gifted them the last one on a bogus pass interference call on Brandon Boykin. On the other two, 80% of the Giants' total yards were gained on four plays of 20 yards or more. What all four plays had in common was the Eagles' safeties.

On the Giants' first drive, Hakeem Nicks caught a 49-yard bomb from Manning, the second attempt in a row to split Nate Allen and Bradley Fletcher. Two plays later, David Wilson plunged into the end zone.

The second scoring drive, in the third quarter, started with a 26-yard pass to Brandon Myers where the tight end found a huge hole down the middle between Allen and Earl Wolff. Two plays later, Manning found a wide open Reuben Randle for 20 yards. Looked like Wolff should have been covering that zone, but ran with Myers over the middle instead.

Finally, the drive culminated in a disgustingly easy 24-yard TD pass to Randle. We don't have All-22 yet, but let's break that one down anyway. The Giants have three WRs, one TE, and one RB. The Eagles are going to play what looks like (again, pre-coaches tape) a variant of Cover One Robber. The defense is in man-to-man across the formation. At the snap, Allen (in blue) is going to drop into a centerfield role while Wolff rolls into the short middle. The rookie's job in Robber coverage is to help in run support if necessary, then read the QB's eyes and jump into those short and intermediate crossing routes.

Below, you can see what happens after the snap. Kendricks has blitzed, and DeMeco Ryans is looping around him (and possibly reading the running back). That leaves Wolff as the sole middle-of-the-field defender. At the top, Randle is going to run a slant against Fletcher.

Below, Manning has stared down Randle, but as he throws, Wolff hasn't moved much. Meanwhile, Fletcher is dropping further back guarding against getting beat deep in man. This leaves a big hole in the zone where Wolff ideally should be:

As Randle catches the ball below, the defense has failed. He's about to pick up a first down because neither Fletcher, who dropped way back, nor Wolff were there to stop an easy slant. Still, with three guys converging -- including Allen from his deep role -- at least it should stop there...

Except wait, no, that's not what happens. You can see below that Wolff was not only late, but he took a terrible angle at Randle and didn't even lay a finger on him. Ditto for Allen, who does this all the time. Randle scampers in for the easy touchdown.

It's worth pointing out that Boykin (bottom) is basically standing still in the last screenshot. If you re-watch the play you'll see that he slows down, seeing what we did, that the Eagles have three defenders set to shut Randle down. As the receiver breaks free instead, Boykin has an "Oh $&!#" moment, where he briefly tries to recover and help out. But it's too late.

So overall, what do we learn? The Eagles defense has a lot of problems, but the biggest mistakes all came from the two safeties. I'd venture that without those, the Eagles might have held the Giants to only 7 or 10 points. That's why I wonder how much better this defense would be with just one competent safety. Getting Patrick Chung healthy again will certainly help some, but I'm already looking ahead to the 2014 free agent class. Jairus Byrd? Donte (W)Hitner? An above-average player at that position would do wonders for this team.