P.S. I don't think he was going to be much of a RB anymore. Combo guy who could do either. Just like how Thomas from Oregon was a WR and took some carries, then made the transition to RB... Reports were that Johnson was doing the opposite at Texas and was going to be more of a WR.
It's also said he's probably on his last straw and if he screws up once more, he's gone... So if he's on the team this fall, Davis graduated and Sanders is now suspended, he could be the 2nd or 3rd receiver. That's important for them.