Unfortunately, it seems that Manchester United changes coaches but they all think the same way and make the same mistakes. For example, there is Victor Osimhen who is a very skilled striker, but Manchester United stops signing him and spends a lot of money signing players without great skills. So it is difficult for a team to have good results when they have this bad behavior.
Let's look at the squad of Liverpool, Arsenal, Manchester City, they have players with great skills from the attack, midfielders and defenders. But Manchester United doesn't have that.
It is sad to see Manchester United struggling so much even after changing their coaches. Way the team chooses new players does not seem to work well. They ignore very good players like Victor Oshimen and spend a lot of money on players who are not as good. This makes it hard for team to get good results. If we look at best teams like Liverpool Arsenal and Manchester City we see that they have very good players in all positions players who score goals and players who play in middle and players who defend. Manchester United needs to think again about how they choose new players and try to get best players so they can compete with top teams.