'One area of concern might by LeSean McCoy. Right now he's Buffalo's second best back. Williams outgained his highly touted teammate 110 to 16 yards Sunday. Williams is running more like a first rounder that the fifth rounder he was. He runs tough north-south and showed breakaway speed on his 41 yard touchdown run. McCoy is probably still feeling the effects of a hamstring injury. A little quality depth doesn't hurt, if that's what you really want to consider Karlos.'