you are right Despite PSG's squad having plenty of star players, their performances were poor. This is because there was not a good relationship between the players. Mbappe's relationship with Messi and Neymar was not good. Also Mbappe played selfishly. Because of these reasons, the coach failed to bring stability to PSG's performance. But now Luis Enrique is not interested in spending too much money. He first wants to create a good match strategy, and strengthen the bond between the players. Luis Enrique will then look to improve his squad's capabilities as the players bond. Will strengthen the squad by adding star players to the squad.
The problem in this case is that we are too focused on blaming players and the reason for the not-so-good relationship between players is always used as a strong reason for PSG's performance which tends to be standard and nothing special last season. But on the other hand we never delve further into how the coach and staff are.
If PSG really wants to develop more rapidly, it is not only players who must be their main focus in evaluation. Even though players are one of the scourges that must be maintained, but furthermore there are staff and coaches and officials at PSG who must also be improved.
The star players even if gathered the results will not have too much impact if their club management is bad and something like this has always happened in the previous few seasons where their luxurious squad seems useless because the club management is not really able to use it as well as possible.