Everyone has attitude issues and I think it's also the manager's responsibility to manage the attitude problems. Letting Garnacho out of Manchester United is another loss o. The Manchester United side. I don't know why these coaches act the way they do. Garnacho is a very promising talent and young enough to be kept. He's just 21 and is not supposed to receive the treatment he receives from the coach.
Most of Manchester United players they sell out of coach's hatred or dislike often make the best in their new teams. Erik Ten Hag sold Mc Tominay to Napoli and he went on to win their player of the season with several awards. Antony, Elanga and many others. If Manchester United don't learn to be patient with their promising young players, they will always loose in the transfer market.
Congratulations to Garnacho, young lad has got more to offer and I wish him the best.
I don't like the fact that a player has to leave the team even if he plays well just because the coach doesn't like him. If a player has a personal conflict with a manager, it should be limited to the dressing room and never bring that conflict onto the field. There will be a conflict between the player and the manager and if that conflict comes onto the field, then the loss will be for the club because when the manager doesn't include that player in the regular XI, he will go to another club and the club will lose a good player from the middle. Manchester United already has a crisis of good players, then if the manager has a personal conflict with some good players and if these good players go to another club because of that conflict, then it will not be good for Manchester United at all.