I don't think there is any way he sticks on the 53 right now unless he can start playing special teams at a high level immediately.
There are so many small things you need to do well as a rb that don't involve running with the ball, pass blocking being 1st. If he's going to be on the 53 right now you need to find ways to get him on the field to do stuff with as little nuance as possible. Gunner on ST, kick returner, etc. Punt returner is a fun idea but catching punts on a windy day isn't easy if you've never done it particularly with 11 men running at you trying to murder you. Kick returns are a little easier in that you have a little space to get started most of the time.