The Bill's coaching staff played a struggling QB with a broken rib. I don't know how else to interpret that than an utter lack of confidence in the backups. Therefore the Bills need better backups.
No one here seems to be denying VY's talent. And just like you can't teach speed (for the most part), you can't coach physical tools. Either the guy has them or he doesn't. So that's another huge plus for VY. I'll admit that I am excited about VY's potential. Fitzy is the starting QB, as he should be, but VY could be a really nice plan B. If he makes the team, it's because he's a better option than the other backup QBs. Worst case is he increases the level of competition for Thigpen.
I personally suffer from mental illness, so I'm not a fan of the loaded term wacko. Anyway, if VY does have problems, that would only make me route him all the more.
I trust Buddy and Chan's judgement. If VY makes the team it would be a sign that they just got deeper at QB. If he doesn't, then we can all just hope Thigpen lifted his game.