Currently the main problem for Real Madrid is the selfishness. Xabi Alonso is also aware of it and wants to take immediate action about it. The board is fully supporting him in this.
Mbappe, Bellingham, Vinicius Junior... These are the first selfish names standing out in the squad now. If their attacking line learn to play as a team instead of an individual only, I believe in Real Madrid to be a superb team just like PSG now...
If not that you saying it now I didn't no that Mbappe is the selfish kind of player because I have always been paying attention to his performance and how he releases ball to his teammates, although you might be right if you had noticed that for some cases he had a chance to give out but didn't but actually I really think we might be thinking about his self wrongly, most times Bellingham is the player that does this kind of thing, although he didn't had a bad intention but some ball is better when you acknowledge that your teammate is beside you to make it work, so actually there is need to work together.