Which backup QBs will get a shot in 2012?

Last week, Bills GM Buddy Nix said that “probably the stiffest competition from what we’ve seen” during his team’s early offseason workouts was the battle for the backup QB role between Tyler Thigpen and Vince Young.

“I don’t know how it’s going to turn out,” Nix told BuffaloBills.com.

The difference between having a capable No. 2 QB and not can be season-changing — the Bears fell apart in the midst of a playoff chase last season when Jay Cutler went down with an injury; the Texans, meanwhile, won their division and a postseason game despite being forced to turn to third-string QB T.J. Yates.

With training camps around the NFL set to open this week, here are the teams most likely to turn to their backup QBs for help at some point in 2012:

http://nfl.si.com/2012/07/23/which-backup-qbs-will-get-a-shot-in-2012/?sct=hp_wr_a3&eref=sihp