Josh Allen had a great year last year, I think that people are too high on him but I see him having a similar year as last year. He has solid depth behind him, Jake Fromm and Matt Barkley are behind him.
Devin Singletary was one of the best rookie backs last year, I think he continues to make strides and becomes the work horse for this offense.
Protection & Blocking
Had a great line last year, there wasn't much movement during the off season. I see much of the same as last year for this group.