He's got to stay fit first and foremost. I'm not sure if he's gone more than about 6 or 7 games without an injury in his time with us so it's really impossible to judge him properly.
Maybe it will actually be good for him to be backup and not be thrown straight in after time out like he was previously. If he can build up to proper fitness then maybe he can take his chance when he gets it, as there's certainly a player in there.
I think he's probably only ever an emergency option at CB though.