Mainoo is clearly a very talented player but at 19 he's no where near the finished article and has holes in his game, primarily the positional side of things. His biggest problem and why you get comments like
@C Kent's is the fact he's being made the main man in midfield in a dysfunctional Utd side. He's not ready to be that and there's nobody alongside him capable of covering up his weaknesses. Two members of a large Utd YouTube outlet were ********s enough to suggest Souness was racist for pointing this out but Mainoo shouldn't be playing week in, week out for Utd at 19 years old. He should be getting dropped in and out of the side, with a stable midfield around him because they're seriously running the risk of running the kid into the ground before he turns 20.
I've always said that Fernandes causes Utd problems. He's been their best player since he signed but he unbalances the side and that's true both for their attacking players and midfield. If Utd played with a more orthodox 3 man midfield then Mainoo's positional issues wouldn't be exposed as much as they are now and Utd as a whole wouldn't be as easy to play through as they are. With Fernandes in the side, Mainoo still learning his position and huge question marks over Casemiro or Ugarte, it's no wonder Utd's midfield is wide open.