Mason Mount's current performance in Manchester United isn't pleasing to watch and that's why fans of the club currently believe that his signing was a waste of resources.
But I think the England international will adapt to the playing style of the club in future time. He's trying to adapt to the playing pattern and philosophy of the club. Mount in my own opinion has the potentials to become a great signing for the red devils but needs more time to start displaying the best part of himat the club.
I believe that a player should be given a comfortable role in order to perform to the expectations. Mount has played in attacking midfield most often for Chelsea and at United he is given rather a defensive midfield role so if someone is expecting a very good performance then they have to wait. I think he will adjust to attacking midfield at United very quickly but that position is occupied by Fernandes right now because he is much better option when it comes to creating chances and finding spaces.