PSG have signed great player but have failed to win the UEFA Champions League because they're not just good enough and playing elite teams seems to be one of the tough challenges they're experiencing every season in UCL.
PSG president, Nasser Al-Khelaifi caused all of this. He would have sold out Kylian Mbappe longtime ago but he failed to take such decisions and have a big problem to deal with currently. He's yet make good signings of the replacement of Kylian Mbappe,
I don't think it would be so good to blame just one person for this thing that continues to happen to PSG every season. Because PSG, which used to have more stars in their squad, was also unable to win the UCL title, so this is certainly not just one person's fault. But it is more about the pressure of the game which is always easier in its own league, which makes it difficult for PSG to develop when facing elite teams entering the UCL competition. And PSG must be able to fix this as soon as possible before next season starts again.
because football is not an individual but a team, consisting of 11 people. So it is impossible to only rely on 1 super star player. Meanwhile, if the middle and back line that supports the star player is not that good, then it will definitely not be able to compete with other clubs which in fact are better prepared and stronger in all areas. Because of course the opponent team will be able to easily guard its opponent's main players, while the other players won't be able to do it very well. It wouldn't be fair to just blame the super star.
What is clear now is that PSG no longer has a football super star like before. So we can see how their performance will be. Will it be much different or not? However, I am sure that they will definitely become winners of the French League title for a long time if they look at the strength of the opposing clubs in the French League.