I've wondered this, he does look like he lumbers a bit at times. Hopefully it's identified and it gives him a bit more mobility because at the moment he just seems to drift around.
Taller centre mids like Toure, Viera, Gerrard have all seemed a lot more mobile, I was hoping to see some of their strengths in him from the highlights I'd seen.
The guys young and in a new country though, I'm happy to give him well into next season. He's shown some of what he can do, I love how he shields the ball as it comes across him and takes it on the turn to move forward, I want to see more of that. He's either lacking confidence or he's been instructed to be more conservative for now.