The defense for the Philadelphia Eagles has been a major weakness over the past two seasons, especially last year, when the team allowed 377 points.

Defensive coordinator Sean McDermott was fired after the season and was replaced by offensive line coach Juan Castillo, a man who has never coached defense at any professional or collegiate level. 

Castillo, like McDermott, will have a talented group of players to work with next season. 

The following five slides highlight the five most important players on the 2011 Philadelphia Eagles' defense, in reverse order.