While I agree that TT's actions are not compelling, I also agree TThas been given little opportunity to succeed.
The play calling when Bo is in the game compared to when TT is in the game is night and day. Against Arizona, TT was only allowed to throw pre-determined swing passes.
My guess is that the coaches don't trust TT right now to run the full offense, but I think they need to give him a chance so that they can evaluate what he can and can't do under the bright lights.