It seems like it's because of money considerations. At the time, they decided to give Ten Hag another chance at the start of this season, we all know that they also gave full support, or in other words, they were all in on Ten Hag, and that cost a lot of money. So if they now decide to fire Ten Hag, then what they have spent can be wasted, and there is even a possibility that they could lose more money if the replacement coach wants to build the squad again.
So if in the end, they let Ten Hag do whatever he wants, it means they feel resigned to a situation that they probably don't want to make worse because if they really want to change coaches, it means they have to prepare more funds, and they must never choose the wrong coach again, so for more options, it can only be done when the transfer window is available.
I am clear about it, the MU will not get ahead with Ten Hag, but how do you do it? It's their money, their interests and based on what we can see things are as they say, it's a shame, but if I were a MU player I would quickly look to leave the club because when they see that they have no improvement, their careers as footballers stagnate, and now the most coveted are the youngest and most famous players, and in the MU there are many players with a lot of quality, so from my point of view it is impossible for the owners of the MU to understand it, perhaps their interests are different and they do not have winning as a premise.