I disagree with players who say Real Madrid needs players. I mean maybe to the bench? But their starting eleven is amazing, and enough to win everything.
I also agree new players isn't the thing Real Madrid needs actually. They have only needed a better management. I respect Ancelotti due to being the most successful Real Madrid manager ever.
However his methods started not to work good enough. Injuries also made things harder maybe but I can't cover it with an excuse just like that.
By the way there is Rodrygo in the image but I doubt him there... Xabi Alonso isn't positive about him in the lineup.
Right now every player is good at the team sheet in terms of role instructions, and also the addition of Huijsen, Trent Alexander-Arnold, etc., can cause a bit of ascending progress in the team performance. Anyway, currently the Real Madrid team is so perfect, and also their coach, Xabi Alonso is so smart. So maybe after a few matches he will be able to make the team performance too good. But for sure it will take a time.