I feel sorry for him. I really do. He came to United knowing it was a massive step up, knew it was a club with a rich and storied history, knew that the pressure was going to be intense. Maguire desperately wants to be a good defender. He's not trying to feck us with comical displays. He's right that it's not his fault he keeps getting picked to play. The "system" we are trying to play doesn't suit him. You, me, and everyone but the manager knows this. He is a limited footballer. If anyone is to blame it's the scouts who recommended him. I don't think Maguire deserves the abuse he gets because he has never downed tools, he's never slagged off the club, he's tried his best. He's basically a defending version of Fellaini.
That said, I don't think he's going to be part of ETH's plans. I think it's possible to criticize his bad performances without calling him a cnut and a disgrace. He's just not very good.