Buffalo Bills: 4 positions they need to add depth to this offseason

Running Back
The running back position is one of the most important to have depth at. These players are constantly taking hits, either carrying the ball or picking up blitzes in the backfield.
Injuries are fairly common so having another back that can step in is vital.
The Bills have to like what they saw from Devin Singletary last year as a rookie and he should enter camp as the lead running back. However after him is T.J. Yeldon, who has experience but saw little playing time last year, and Christian Wade, who is still learning the position after transitioning over from rugby.
It is going to be important for this front office to find a running back that they can feel confident in if he needs to step in as the featured running back. The team should look at a running back like DeAndre Washington, who did a good job in place of Josh Jacobs last year with the Raiders.