Castillo, One of Three Defensive 'Head Coaches'

Chris McPherson, for the Eagles website:

Castillo said he was open to the idea of adding Spagnuolo to the defensive staff. Castillo points to Spagnuolo’s resume which includes a Super Bowl trophy from his time as defensive coordinator with the Giants.

“There’s nothing wrong with having three or four head coaches on the defensive staff,” Castillo said.

Well, that pretty much says it all right there.