One of the things many "experts" seem to overlook in regards to United is their lineup is full of "okay" players such as Valencia, Young, Smalling, Fellaini, Rashford, Lingard and McTominay. You might have spend big on PogBroke, Lukaku and Alexis, but the rest of those players. Ugh..
Most of these are truly okay players but if used wisely can be impactful. Think about how we used Giacherrini, Asamoah, and even Pereyra in the past. Stu in the present

. Manzukic as winger. Caudardo as WB. MDS and Stu currently. Even Moses and Alonso as WBs in Chelsea. He has enough top players that if mixed with these good/okay players should be doing more than what he is doing right now.
Darmian and Shaw were promising but he didnt get anything out of them. Miki was supposed to be top but he couldnt get anything out of him. Same with Pogba at the moment.
2 seasons ago, UTD bought the best player in Serie A (Pogba) and the best midfielder in the Bundesliga (Miki) and couldnt get anything out of either of them. Lukaku has been competing for top scorer for a couple of years before going to UTD. Sanchez is still shooting blanks.
This squad is seriously underperforming. The top players are playing at a level below their normal. The good/okay players are being mediocre. No one is punching above their weight and several are underperforming.
De Gea is the only player they have playing at 100%.