He has got the the first team on raw talent... he has been given time to play in the first team because of that talent. The thinking is... you can teach the tactics and the bits and pieces your referring to , but can't teach someone to shoot with both feet, be athletic etc. the fact that it's the bit that is meant to come with experience, that ross can't improve would suggest he runs on instinct rather than being able to calculate and decide things. So in other words .... tactically stupid, add that into his dancing videos, the fact he looks like he's about to blow his load playing rock , paper , scissors , the fact he goes out on the town and gets himself in stupid situations , the way he's handled his contract etc would suggest he is also stupid in general life