I think there are significant questions as to whether or not he can lead the Bills to playoffs, especially in the AFC East, where winning the division is out of the question and there are most likely 2 losses assured.
Take a look at the 2016 playoff teams and their primary starting QBs
1. New England (Brady)
2. Pittsburgh (Rothlesberger)
3. Kansas City (Alex Smith)
4. Oakland (Derek Carr)
5. Miami (Tannehill)
6. Houston (Osweiler)
7. Dallas (Prescott)
8. Green Bay (Rodgers)
9. Atlanta (Ryan)
10. Detroit (Stafford)
11. Giants (Eli)
12. Seattle (Wilson)
Of those 12 teams, Tyrod would only start for one team (Houston). The other 11 QBs are better than he is, in most cases the difference is significant.
The handicap of not having a better QB and being in a division where a 9-7 record won't win the division are two handicaps that are too big to overcome. Throw in that other QBs that are better that weren't in the playoffs (Luck, Flacco, Dalton, Rivers) and I just can't see how they are a playoff team with Tyrod at QB.
If they were in the South and could win the title with a 9 win season I would be with you. But they aren't and need at least 10 wins to make it. That's too high for a team with Tyrod at QB unless the defense is top 5 at all times and even that might not do it.