Backup QB is overrated, especially in a league where star QBs make all the difference. It just doesn't make a ton of sense to invest heavily in backup QB for guys like Rodgers/Brady/Manning. Right, until they get injured. Its not like Rodgers has had a clean bill of health his entire career. He took a lot of hits last year, and the line play has not been great in front of him. There's better options out there then Matt Flynn. You run that risk. If Brady goes down so do the Patriots chances. That is life in the NFL. Backup QB is one of the least important decisions you can make on a team and in a salary cap league like the NFL where your starting QB takes all the practice time, it just doesn't make sense to whine about backup QB preperation to replace an All Pro caliber guy like Rodgers. It is a hell of a lot easier said, than done, to have a quality backup. Good backups want to play on teams where they are likely to play, not teams that already dedicate a huge portion of payroll to the star who has never missed a game.