Most of the names on the list are relatively anonymous. Perhaps the most famous referee in the NFL, Ed Hochuli, also happens to be by far the most strict — by an average of one more penalty called a game than the next highest, Jeff Triplette.
Hochuli’s crew also calls an average of five more penalties a game than the two most lenient units, headed up by Pete Morelli and Scott Green. That amounts to a difference of about 50 penalty yards per week. Over the course of a season, that’s 80 extra penalty calls and 800 yards of game-changing decisions.