I hope (if Tyrod gets injured) that Cassel starts, so we can all see him crap the bed. Then EJM will look like a hero.
The only way EJM becomes the starter next season in Buffalo, is if Tyrod either sucks, or is injured, and then EJM comes in and leads them into the playoffs. Otherwise, they will do their best to raise his trade value, and he will be moved before next season.