It seems that Erik Ten Hag's coaching system is harsh, causing misunderstandings between players, as happened with Erik Ten Hag and Jadon Sanco, and maybe other players also feel that Erik Ten Hag is temperamental, indeed if the coach and players are unable to build chemistry a good one will cause the defense system to weaken and experience a decline, as is currently happening with Manchester United having an erratic performance.
In my opinion, even though Erik Ten Hag has a harsh, it seems like Erik Ten Hag is firm in making decisions so it is not easy for anyone to control him and at least it was proven that last season Erik Ten Hag succeeded in saving Manchester United's performance which had experienced a decline and in my opinion Manchester United must learn from last season, although currently Manchester United has experienced a decline, Erik Ten Hag's coaching system is not so bad. Erik Ten Hag just needs to establish peace with the players so they can work together optimally.
Ten Hag's high ego and temperament always want to be followed by others so it is a little complicated for a coach who should maintain good communication and chemistry with the players but besides that, things like this are not new to Ten Hag and he should try to minimize this so as not to be too stubborn and make it seem as if the player are pawns that can be treated as freely as possible because he is a coach.
Currently not only Sancho but some other rumors Varane is also rumored to have the same problem with Ten Hag although this is still not fully confirmed.
Assertiveness and egoism are different attitude so dont let Ten Hag high ego be used as an excuse that he is someone who is assertive. But whatever happens, he will still be comfortable with the support of United top brass to become the new manager.