Im pretty sure that PSG will buy "star" players if they failed again this year (UCL).
PSG has offered a crazy contract 3 times bigger than Madrid bid to Mbappe, the club financial must be healthy.
This year might be not the year for PSG, but next year will be different.
But who are these players then after they bought Neymar, Messi and Mbappe? I think it can't get any better than that if we talk about star players that they could buy. I think there isn't much they can do from here. But let's assume that their goal would be to bring in a whole new set of star players, who are these players then?
Honestly, PSG's performance in the UCL at the moment is not that good, even in Group F, even though they only succeeded in being in 2nd place after being held to a draw by Dortmund, in the round of 16, PSG will start the UCL against Real Sociedad, to be honest, the team the Spanish league has an unexpected surprise, PSG could be held to a draw or even lose.
I don't think PSG needs better players (even with neymar and messi remaining at PSG) currently, they already have a good squad, it's just that they don't have the luxury of having a good coach, that's all, that's what I thought.