Bills named on list of 10 'most complete' NFL rosters

Allen might not have been at his very best last season, but he was still the biggest reason the Bills were able to overcome some of their warts and compete. He is surrounded by a strong offensive group, led by Cook and a well-built offensive line, but it’s not one without worry. Wide receiver is the biggest question mark, even after the acquisition of DJ Moore and the drafting of Skyler Bell. If tight end Dalton Kincaid can stay healthy and wideout Keon Coleman can develop, the Bills will be more dangerous.

The defense is undergoing a scheme change under Jim Leonhard, who’ll run the unit more like the attacking 3-4 approach we've seen from the Broncos in recent years. There’s a question as to whether the Bills have the personnel to make the switch currently. Linebacker appears to be the thinnest spot right now.

Rousseau, Ed Oliver, Deone Walker and Bradley Chubb, along with the addition of second-rounder T.J. Parker, likely make the front the strongest part of the defense. The secondary could be a defensive strength if Cole Bishop and Maxwell Hairston take big steps this season. Adding Chauncey Gardner-Johnson, Geno Stone, Dee Alford and some draft prospects also gave the back end a boost.

This article originally appeared on Bills Wire: Buffalo Bills named on list of 10 'most complete' NFL rosters