2011 marked the end to some of the greatest college football careers we have ever seen. Some great players got to walk away champions, and some great players just got to walk away.
As spring football approaches, many of these great players' legacies are revisited and shared. But soon programs around the country will get back into the daily grind of seven-on-sevens, early-morning workouts and team meetings.
As teams set foot back on the field, many are doing so with different looks than their 2011 units, because many of the squads that were so successful last year will have to replace personnel from last year's teams.
So, without further ado, we have the seven programs who must replace the most from their 2011 teams.