Mills is a solid RB, but not explosive and with this offense you need at least one explosive back. I don't think you can write off Scott at all yet he's a freshmen in a weird season. Johnson is strange to me, in his limited game time this year he seems like he has great speed, can catch and hits holes well. Maybe his blocking isn't where it needs to be? Thompkins is injured, but man you can see the potential there. I think Morrison has been injured as well and is a freshmen so it's just a tough year for this group. I think at least one of these guys could emerge next year.