First of all, experience. This a critical aspect, I know, but personally I prefer gaining experience before putting a youngster into the first team. Grittiness (if that's the correct English term for what I want to say) to able to stand his ground when he faces players like Charlie Adam, as well as being more direct. He still likes to try too much when the easier option would be the better one, but that's really only got to do with experience. His fitness and overall physical attributes have to improve, his body is slim, a few more muscles will do wonders for him, just so he's able to dominate.