Manchester United must have been smart here because if they were to sack their current manager, who would take charge of their club was a big question for them. Bayern Munich, after letting go of an experienced manager, are realizing they shouldn't have let go in the first place. Ten Hag is quite experienced and has been working at Manchester United for a long time. He has improved Manchester United considerably, although he has not been able to make significant changes to Manchester United. As he has been given another chance next season, he will definitely try to make the most of this opportunity and do his best to save his job as well as his team's good performance. If Manchester United makes some plans and appoints some quality players in some positions, then this team's performance will definitely be good.
I do agree that keeping ETH was a good decision, there is really nothing wrong with that, I am just against them making it quite terrible if they let him pick which players he wants. The problem with ETH is not his tactician talent, he is a great manager when the season starts, but as we have seen before, his list of players he wanted is horrible and he makes the team spend so much money for shitty players that did not help at all, and he wants to be right about the players so he puts them in, making the team worse.
Just take that right from him, get whatever front office wants, director of footabll should know better, and tell ETH to play with whoever is being given to him, I guarantee you that they will do much better that way.