I have also said that Manchester United's main problem at the moment is the squad. The coach will need to sell some players from the defense, midfield and the attack will face the biggest problem. Because there are players who were recently signed and who are not being very useful, so I wonder how they will sell these players because they bought them for a high price and I doubt very much that they will be able to sell them for the same price. It is also important that the club's management and the coach tell the fans that they need to be patient because it will take at least 1 year to organize the team and the following year they could fight for the title.
Currently, Manchester United's defense looks quite chaotic, although it cannot be denied that there are still some big names in the squad but in the end it does not have any impact on the current defense even big names like De Ligt, Yoro or Licha even though it does not make their defense look luxurious even though if you see these names are names that are actually still quite big.
In addition, for their full-backs, there still needs to be some changes and I actually don't really like Amorim's way in the defensive scheme because this actually seems to make Manchester United not very stable in the end.
If you really don't want a too significant overhaul, I think Amorim should try something new but indeed if this is not possible then at least some players who are not too suitable for what continues to be forced to stay at United.