WOW... Remember how well guys with Felix Jones' do as the "everydown back"? Guys like Reggie Bush? How long did it take Payton before he realized he better get Bush the ball in space, because he can't cut it up the middle...?
I'm not saying that Felix can't handle running up the middle... but I'm saying that it is not his strong suit. It is however, MBIII and Choice's strong suit. Let them do the everydown beating and banging together, then sprinkle in some F. Jones screens or tosses to get him in space, line him up in the slot, move him around like we moved T.O. around to get him the ball... Heck, put him at RB and Barber at FB then motion him to the slot, now you have a LB on one, and a Safety on the other they're doomed! But don't make him something he is not suited for... he's not a starter either....
Barber didn't have the rushing numbers that everyone was looking for, but he outgained alot of other backs in total yds. In fact he was top 5 I believe before he got hurt. That's what you need when you are a passing offense... good pass protection and good hands...