It is really harsh that he's essentially become a meme, but I think the captain armband at United has destroyed him. Not only that, but I think it demotivates every other player on the pitch when he's the captain.
I don't want to berate Maguire anymore because I'm sure that's already been done to death. But you can't play for Man United and be captain of the club when you look so unsure, insecure and indecisive as to your job on the pitch, and role as a leader.
There was an instance in the second half where he stalled about 5 times taking a simple free kick on the half way line. Eventually Eriksen came over and took it. But like, what was he doing? Just make an easy 5 yard pass.
When Martinez and Varane play, they fire up the entire back line, defend high and set the tempo for the entire squad. When Maguire plays, he seems to just suck the life out of the team with his dithering. It's like everyone is saying to themselves "why is this guy still here? Why is he my captain?"
Needs to go in the summer.