I'd love Motta here. When evaluating young players you can't pay attention to anything else but their talent and physical attributes. Motta has talent, speed, strength and whatever a RB needs to be successful. He just has to put it all together.
For example, a guy like Grygera will never be good because he's slow and weak. And if you want to talk about the mental side of the game.. we know Motta was captain of an Italian team so there is something in his brain.