So the coach knows very well what to do and what not to do. It will be best for Real Madrid to absolutely trust him. And a lot of players being present for a single position is actually going to make the squad have a healthy competition between the players. That will eventually help the club
Ancelotti is a great coach and he knows how to calm the ego in every player. I think Don Carlo really has a strong charisma as a coach that makes the players respect him. As you said, Ancelotti certainly knows what he can do, especially about how to rotate players. However, having many players in one position can be a problem for team cohesion. All players want to appear because it will affect their career, but if they are good players but become reserve players because they are unable to compete, I think they can leave in the next season.