In my opinion, Manchester United should have sold any of their current midfielders as a way to complete the Manuel Ugarte deal, Casemiro and McTominay cannot strengthen the midfield as they would like, in fact, Casemiro has not been in the best form since last season, and Manchester United should have considered selling him when the Saudi team request for him because it looks like Casemiro's career has ended in Real Madrid, this isn't the same Casemiro we knew from Madrid.
Casemiro has declined honestly. Before the pre-season games, I was busy defending him, but during that gake against Liverpool, It was crystal clear that if Manchester United fail to get a new defensive midfielder, they're sending Erik ten Hag to World War 3 without ammunitions nuclear weapons. I won't sugar coat shit, I'm disappointed with Manchester United.
Scott MC Tominay is not a technical player and not a player who can push Manchester United forward. They should have sold him when Fulham United brought in that offer for him.
Manchester United fans shouldn't be expecting a great season because they'll face more tribulations, more than they had last season.
I won't say Casemiro hasn't declined. What I can boldly say is that, he had a great first season for Manchester United, assisting on his first 90 minutes debut!