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.
I would not say that Mbappe - Messi - Neymar performance was poor as they had combined 90 scorer points in Ligue 1. I guess it will be hard to find another attacking trio with 90 scorer points in a season in the league only. That's without Coup de France and without the Champions League. But they have still lost too many games and I think conceded too many goals as a top team.
In the game against Bayern Munich in the Champions League round of 16 PSG almost didn't have a chance despite all the star players. The difference in their performances was unexpected and must have also been disappointing for everyone who was looking forward to PSG delivering some nice games. I guess this season won't be any different.
No offense with League 1 achievements, before the arrival of the names Messi, Neymar and Mbappe Psg as a side has been unstoppable during league games and league cups. They had the finest game understanding and relationship but ego and misunderstanding came all up which we should blame on poor management.
Most places where Psg fans needed the show of talent was during the champions league but they didn't get it with Neymar, Mbappe and finally when Messi came in.
Psg with the trio's lacked a good coach to guide the player's, they had a good fanbase but no creative midfied energy.
Obviously, there is going to be a problem between the players when a young player is going to be given the authority over other players. Of course, ego is going to come into play in this situation. The young player who has authority over others is going to think that he owns everyone else in the squad and the actual senior players in the squad who are actually the best in the world are going to have an issue with that.
And of course, there was also another problem with the coaching as well. The coach was simply not good enough in my opinion to actually manage a team full of stars like that. And even the authority of the club has given too much importance to empathy in my opinion.