1; Failure to improve players
Key reasons many united fans have demanded that pochettino should replace solskjaer, his ability to improve his current crop of players without relying on the market. Dele Alli, Harry Kane, Heung Min Son, Harry Winks among others have all improve under the Argentina man.
2; persisting with underperforming players
Solskjaer’s persistence to consistently select underperforming players has perhaps been the most frustrating part of his reign so far.
3; Lack of ideas
Solskjaer’s credentials as man utd manager have been questioned the moment he replaced Jose Mournho. These questions are justified as well, with Solskjaer only previous managerial experience at molde and a relegation season with Cardiff.