I'm not doubting the potential for him. That is totally open. He's shown flashes of excellence. As I said his success relies on many other elements than his actual abilities.
Be careful defending performance on actual game experience. We've seen for example mediocre quarterback play at LSU. Les tries to not play youth.
Some guys have lots of experience on the bench like Gautier. Deemed lacking mental capacity to run the Bustle offence he mostly sat. Given opportunity by Hud he flourished.
Two full years riding the pine is plenty of time to learn the position. All he needs is a team and to execute.