What does excellent mean? Top 3 in the league, top 5 in the world in his position, world-class even? He was none of those things at any point in his career and someone who was bought as the most expensive defender ever should be. He is judged differently because of what he is supposed to bring. He was supposed to be good enough to be the lynchpin of the defence and then to be a captain that drives United. He hasn't and doesn't do any of those things. I don't think Maguire needs to be public enemy number one the moment he steps on the pitch but he has never been good enough and has never been "excellent". He has at some point been a very good Premier League defender, but that is not what United needed from his transfer (and he has rarely delivered even very good, anyway).