Who will back up Aaron Rodgers?

Prior to last season, when Aaron Rodgers missed seven games, the backup QB job for the Green Bay Packers required little more than holding a clipboard. Rodgers is fine now and likely won't miss a game in 2014 -- but you never know. That's why people are paying a bit more attention this year to the preseason battle between Matt Flynn and Scott Tolzien to be Rodgers' top backup.