The reason Casemiro left was not a matter of trust in the club and players at Madrid but it was clearly money that spoke because he had a big offer so he couldn't just let it go.
As for Tchouameni, in this case, he is a talented young player but on the other hand, he still needs support to develop because in this case,
Indeed, it is more about money offered by Man United. Although we know that his career maybe not going to be more shining again in Man United, because of the whole club squad, at least, the money offered can really pay for it. Well, we cannot deny that many players still choose more for the money offered.
I believe that Tchouameni will be a good replacement for Casemiro although he is a young player. He only needs a certain time to be solid in the club and I am sure that it will not be long. As long as the coach really gives him the chance and all the whole players can help him, they will be again a solid unity.
Now, Barcelona shows its strong performance by winning against Real Sociedad with score of 4 - 1
Lewandowski really shows his power by giving 2 goals.
Regardless of his performance, which will still be good or not, this depends on Ten Hag and the adaptations he makes there because indeed with the current condition of MU, it will indeed be a little difficult for him to build chemistry because some of the players there, even though they are expensive, look like they have lost. motivation.
Tchouameni is still very good but indeed he needs time and I think for now he is still quite good. As for Lewandowski at Barcelona, it's clear that he has to do that because with the high price he paid and the high hopes he has on his shoulders, it would be very good if he shines again in Barcelona.