Nick Fairley and Corey Liuget boost D-line

Updated: December 7, 2010, 2:54 PM ET
By Steve Muench

College football's regular season is over and it's time to look back and assess the progression or regression of 2011 NFL draft prospects over the course of the season.

Remember, though, that the decisions of high-profile underclassmen to enter the draft or return to school can change things. We'll also be updating our evaluations on senior prospects over the next few weeks and that is sure to tweak the rankings as well.

But for now, here's a look at the position groups that have improved the most and taken the biggest steps back based on what we've seen of prospects in game action. As always, underclassmen are denoted with an asterisk.