You see it alot in baseball. A young pitcher comes up and his pitches are limited at the end of the season. With Cassel he has never played a 16 game season in the NFL. How will he hold up mentally and physically? I know he is in great shape but he has never gone through along season like that. I know he will not be throwing 30 times a game. Can he physically be the same qb in week 14 or 15?