most likely the main goal of the president of psg recruiting messi, because psg wants to lift the prestigious league trophy, because psg if in their own match they are satisfied with lifting the league trophy, but they want to lift the champions league trophy, they expect messi to bring miracles in the champions league, if messi succeeds bringing psg to lift the champions league champion, it is certain that messi will be considered as a bringer of luck, and they will definitely extend messi's contract at psg..
Is it only Messi who is nicknamed the star there ? because what I see there are a lot of star players at the PSG club and while Messi is at PSG his performance has not been good, whether it's because he is 34 years old or because of other factors, what is clear at PSG is that there are already many stars now and not only Messi just.
Yes, there are a lot of stars players there, and they have been there for years. But how much did they help to win the league?? there were unable to help PSG win the champions league.
Maybe that's why they recruited Messi. As we saw that with even a bad squad like Barcelona's Messi was able to do wonders. Barcelona can now feel that how important Messi was for them. He single-handedly carried them to success. Maybe that's why the PSG board thought that Messi will be able to help them get the CL trophy. So far this season PSG do look like a contender for the title, let's see what the future holds for them.
You should have seen how Ronaldo was after leaving Real Madrid, did Juventus and Ronaldo actually win the UCL title at that time? no. Then Messi left Barcelona and you assume the PSG board expected Messi to be able to give him the UCL title, those are two old players who still have star charisma but not the UCL title because of their unproductive age. But by the way, I also agree that at PSG it's not only Messi because almost all PSG players are star players, if PSG are able to win the UCL title it's not only about Messi.