Hopefully Leonhard and his staff have their D group coached up.
The current Bills D lineup, based on last year's performance isn't a world beater.
Some guys will really have to improve their performance from last season, [e.g. Chubb, D. Williams, Bernard, TJ Sanders, CJGJ).
Ed O is a durability question mark. and I'm not looking forward to the prospect of Nico Collins facing either of our starting corners.
Our O on the other hand, basically returns 9/11 starters. Suspect there might be a few track meets this season.