Van Nistelrooy seems to know better how to use the Man United squad to make it better than Ten Hag. I think the Man United squad will get great appreciation for this match. And because this is Man United's first match without Ten Hag, this will be a little more painful for Ten Hag.
It was a great match, considering Manchester United's performance before this match, it was one of their best matches this season. On the one hand, it's strange that it coincided with the fact that it was their first match without ten Hag, but on the other hand, it's a cup match, which not all teams treat with the same responsibility. Much more important will be the next match with Chelsea, I don't know who will be the head coach there, Van Nistelrooy or Amorim.
There are some things that are known in football but are not said much. One of these things is that players do not perform to their full potential when they work with a manager they do not want. This is the case in many parts of the world and when players are not in harmony with their manager, things do not go well. In some cases, they do not play good football until the manager is dismissed from the team. I think this is exactly what happened at Manchester United.
After the manager left, the players started to play better. It has only been one match but we will see this in the following matches. My guess is this because the players at Manchester United are very good individually but they were not playing well as a team but now the situation will change.