Looking at the Bills roster this year I'd say they have less talent than the team that started 2015
Gone Mario Williams, Manny Lawson, Nigel Bradham, Karlos Williams, Chris Hogan,
Injured Shaq Lawson, Reggie Ragland , Chris Gragg
Suspended 4 games Marcell Dareus
What the Bills did not get done in the off-season - Big red zone WR, better TE depth, another pass rusher,
The good news is it seems Watkins, Clay, McCoy, and Taylor may all play together in relatively good health for the first game, IMO for the Bills to make the play offs none of these guys can miss more than 1 game
On defense I'll guess we will see if buy in to Rex's scheme can overcome loss of talent