He doesn't have to be good at everything. If he did have the finishing ability of a Kane or Son or Dele he would be an amazing player. Right now nobody in the team trusts him to finish anything, including himself, and he avoids getting into threatening shooting positions like the plague because of that. He has the power and pace to get in the box regularly but can't get anything out of it at the moment.If you think the only thing he can't do is shoot, I respectfully disagree.