Taylor was able to hold the team right at or just a little above the 500 mark without much help from the D so its hard for me to see the Bills losing ground in that regard despite the tough schedule and new HC/coaching staff in my humble opinion Shaw.
I agree with your comment on not much separation between 10 - 6 and 6 - 10 teams.
Myself personally, I"m predicting a 9 - 7, 10 - 6 season with Sammy , Shady and T Mobile leading the charge/ wildcard