I've said I think JT Barrett gets the start and that was before the head issues Cardale had. After that I'd think it's almost certain. I think his explosive ability with his legs adds another dimension that Cardale doesn't have. Cardale is mobile enough to gain a hard 5-10 yards but he's not explosive with his feet. Barrett did lead them to 10-1 or 11-1 start last year right so he's done more than enough to show that he can lead the team even though Cardale finished the job last year.
From the pregame show, sounds like all the celebs and NFL guys are on the other side of the coin.