Maybe had we sold maguire and Mctominay and bought a decent back up striker and a A pacey CB we might be in a better shape.Sorry it's 4AM over here.
Half of the players you mentioted can play better and we saw it. Just imagine where would be if we had sold Harry and McTominay.
Can we upgrade on them? Off course. I would sell all of them bar young kids. But I don't blame them when they have to play in this suicidal formation (Rashford lazines aside). Tactic so good it fall apart when you miss your LB.
We have a lot duds, but are they that bad to be outplayed by every club? Nah
These players have proven enough that they are not that good to challenge for the title and hence if we are to move it to the next level, no matter who the manager is we need to move past them.