Yes, but you tell him straight to his face, if he wants to be a RB, he simply needs to come in and show he can do it. If he can, he gets the job. "Sure, we'll let you try out there, and if it doesn't work out, we'll try to at CB." It was a MASSIVE failure not bringing him in and giving him a shot. If he's the best CB in the country, but wants to try out at a different position, you do whatever it takes to get him in the door.