I think Carr is more likely a 10 to 15 QB, but maybe that's good enough. But, as I said, regardless of how much you like Carr, he is going to be 34 next season and only has two years left on his contract. So we need to be thinking about and looking for the next QB. That's why I think a guy like Malik Willis, if not Malik Willis, makes sense. He's young enough to sit behind Carr for a year or two to learn more and be ready to start. And, he has running skills that would allow you to get him on the field to run the Wildcat and trick plays while he waits to be the starting QB.
Maybe the answer is Rattler. He has two games to prove he can be a starter. He has shown flashes, but he needs to show more progress.