The squad needs star players. However, it is not always possible to perform well if there are star players in the squad. In this year's Premier League, we can see Chelsea and Manchester United teams as examples. A lot of talented and star players are in the squads of these two teams. However, their performance is quite poor. Qualification for the Champions League is unlikely to be achieved by these two teams. On the other hand, Aston Villa and Newcastle teams are performing better than Chelsea and United without any star players.
PSG definitely need a score machine like Mbappe to keep their performance stable. Mbappe has the ability to score a lot of goals. But if match strategy and chemistry between players is not good, it is not possible to survive in a competitive platform like Champions League.
Surviving in Ligue One is simple, there are limited challenges for Les Parisiens and that put then in a better position to win matches and titles because they're top club. If PSG could sit in the position to duplicate Kylian Mbappe, they will without hesitation, winning will become constant. Paris Saint Germain have risen from the top lead, they have started to settle for lesser outcome which weigh below their standards. PSG once upon a time had brilliant top names in the club but they couldn't hold tight of the club, resulting tem to become vulnerable to their opponents and they easily lost matches.
As a player who's scored numerous goals for his club, Kylian Mbappe will surely be greatly missed if he happens to leave Paris Saint Germaine this summer and considering his contributions to the club, it'll be difficult for them to still deliver good performances that'll be as good as the ones they were having when he's still at the club.
Paris Saint Germaine this season have improved to become the most consistent team in the French league and looks like the team that are surely gonna win the Italian league. Hopefully, they'll get a good replacement for Mbappe when he finally leaves the club