Regarding player recruitment, I think it is definitely necessary to do it because some players who often make blunders and make Manchester United lose clearly have to be thrown away, including one of the goalkeepers who I think is not worthy of being maintained by the team for next season. In addition, Manchester United's attack line and defense line also need to be completely overhauled because the two lines are really weak and not sharp at all to make the team superior.
MU needs a total chang, the problems faced by MU right now are really severe. All lines of MU players do not show optimal game results. In my opinion, not only changes from the players and coaches, but also from the management and staff/sports director of MU must also need to proven about their capacity to bring in new players and good coach for MU. If the current owner is no longer able to solve the problems from all lines of MU, it seems that achieving the championship will also be difficult.
Changing the coach is not necessary; Manchester United have changed coaches several times, but there has still been no improvement. I think the most important thing is to change most of the players because I'm very sure the problem the team is facing comes from the players. It is so painful seeing Manchester United struggling for several seasons, and instead of a little improvement, the whole situation is just getting worse. This is the worst season for Manchester United. I think the club really needs to do a thorough cleanup and bring in players with a different mindset who are ready to give their best to the club.