there is no guarantee here that they will win anything, even if they buy new 11 top players. I remember when Real have Figo, Zidane, Beckham, Ronaldo but he still not win many trophies.
Also, how much players they can buy in one transfer summer? He already spent 300million, if he doesn't sell someone, how can buy more expensive players and stay in FFP? Plus he asking too much money for his players even if they don't play on the top level.
when the clubs hear "Real Madrid" they automatically rise the price of the players. if Real wants to buy someone there is no money limitation.
Exactly, it doesn't happen to just Real Madrid the same thing applies to Barcelona, PSG and Man City when they approach clubs for players. This is the only why Barcelona could have ever paid 105 million for Dembelé.
I think Zidane need to sell a couple of players, why keep numerous stars when they obviously are not part of your plans, I'd be surprised if both Bale and Isco remains with Real Madrid at the start of next season, there are yet to be significant talks about them though, but with Hazard and Jovic deal completed already, the next few weeks could be about outgoing transfers.