We all know him, some hate the guy, some like the guy, and others like like the guy but what would be the final straw in this relationship? When we first got him I hated the pick, I was a Rosen truther but the NFL and Allen has proven me wrong. The most surprising part about the Bills season this year was how much Allen progressed. With coming off a playoff appearance, Diggs in the building, and Brady gone expectations can't be higher in Buffalo. With all these Great Expectations for the Bills what from Allen would make you want to bring in legitimate competition and potentially move on.
For me it would be some combination of the following:
We don't make the playoffs/win the division.
He doesn't finish as a 4k plus passer.
After 3 seasons he still doesn't have a 300 plus yard passing game.