Five pass rushers who must improve
Falcons DE Kroy Biermann
After putting up five sacks as a part-time player in '09, he has a good chance to beat out Lawrence Sidbury for the starting job at left end. He will benefit from John Abraham's disruptive presence on the other edge.
Panthers DE Everette Brown
He flashed pass-rush ability as a rookie backup, collecting 2 1/2 sacks. Now bulked up to replace Julius Peppers, he has an opportunity for a big breakthrough.
Cardinals DE Calais Campbell
With Campbell lining up opposite Darnell Dockett, Arizona has the best pair of pass-rushing 3-4 ends in the league. Still developing, Campbell has room to improve on his seven sacks last season.
Chargers OLB Larry English
If San Diego trades Shawne Merriman, it would pave the way for English to get regular reps. Even if Merriman stays, English should get many pure pass-rush chances out of the team's 3-4 scheme.
Raiders OLB Trevor Scott
He collected 12 sacks his first two seasons, including seven while starting only six games in '09. If he beats out Thomas Howard for the weakside spot, he'll get a lot more upfield opportunities.