Manchester united is in its transforming stage, it will take time before they will bounce back to winning ways because there's a whole of things to set by the coach and the players will have to abide by strict rules set. Erik Ten Hag have his own ego to float, we know him to be one of the tough coaches that have managed Manchester United and he's not going to relent when it comes to his duties as headcoach. He discipline his players accordingly and he share the exact same respect and commitment to all of them despite the high status of some players.
Yeah I actually agree with you because Manchester United has a very long way to go before there performance could be improved, actually they really need to work on the team from players to the coach,in fact coach is one of the major area they need to work on because is quite obvious that Manchester United is finding a hard time copping with the formation of there coach.
So however if possible Manchester United will change there coach and put more capable coach like Arteta you will see that the team performance will be improved immediately and also buying some more strikers will really help Manchester United a lot.