I don't know, I think this Bills team can beat anyone.They "should" only get better as the season goes on. I mean everyone is basically new on offense and I believe they will get better and more chemistry will evolve for all of them. Especially if the Oline can stay healthy for the most part.
But yeah, I think with this defense the Bills can have a very good shot at beating any team, even the almighty Chiefs and pats, and any NFC team. Feel pretty good about them and excited to see the offense take that next step as the season progresses.