Running Back
The Buffalo Bills are almost certainly going to add a running back at some point on Saturday when considering the position group consists of only James Cook, Ty Johnson, and Darrynton Evans. Fortunately, there are still a lot of good players available at this position that should be able to make an immediate impact.
The focus for the front office should be to find a bigger running back that can be the goal-line or shortage back for this offense. The first running back that jumps out is Braelon Allen out of Wisconsin who is 235 pounds and had nearly 3,500 rushing yards over three seasons with double digit touchdowns every season.
Another running back to watch is Isaac Guerendo out of Louisville who is 221 pounds and while he isn't as big as Allen, he is still big enough to be that power runner. However, the Bills may be interested in Guerendo more than Allen because he gives them a little more as a receiver out of the backfield.