Ten Hag must win the dressing room because everything starts from there. Some of Manchester United's senior players look selfish in the game and actually this should be resolved rather than bringing in lots of new players. I agree that there are certainly some players who come and go, but improving the performance of existing players must be the focus at this time.
The egoism that occurs at Manchester United does seem to have become an ingrained problem because it is not only about Ten Hag who still has a big ego but some of his players are also the same, especially when on the field.
This season I am still highlighting the play of Rashford and Bruno who sometimes play always prioritizing their individual qualities rather than working well together with a team. Things like this are always difficult to control, especially for Rashford who sometimes focuses too much on dribbles and Bruno who always insists on scoring goals.
Although it is sometimes a good thing but on the one hand this also makes opportunities sometimes wasted and if Ten Hag remains trusted as now to become a coach at Manchester United then he must be able to solve things like this.