The only reason it's possible he won't start is because we all expected he would be named the starter for VA Tech, and then again after the Northern Illinois game. Yet both times Urban shocked us and rolled with Cardale. From what I hear, Cardale has been the better practice player, but at a certain point you have to go with the guy who performs on game day. Barrett clearly makes this offense more dangerous.
Curtis Samuel and Dontre Wilson have both been under the radar simply due to lack of touches. When you've got Elliott, Miller, Barrett, Thomas, Marshall and only one football it's tough to get everyone involved. But I think Curtis Samuel in particular is a player to watch out for. He's a phenomenal athlete and Urban raves about him every week, just hasn't had enough touches.
