Well at least in the offseason, coaches are limited to how much time they can spend with players. Individual player workouts aren't. There was some heavy inference to that. I don't think that same limit applies in season. But maybe there is some consideration there if they plan to have him in that role an additional offseason.
Also, can't totally discount practice squad as an option I guess. Though I'd think by this point of season some team would jump on him for a true #2 role, and you can't block that.