He always wants everything to go through him. Constantly dwells on the ball trying to dribble taking any momentum away from the flow of the game. He thinks the crowd have come to watch him play. If we had kept Carrick in place of him, we would have better chance to win the match. His passing wasn't too great either today.
On top of that, he is one of the worst finishers I have ever seen in a United shirt.
A great player or potentially great midfielder makes players around him look better sacrificing any form of glory. Might be an overreaction but I don't think he is ever going to be a great player for us.