Yeah, PSG had a powerful team whether in the attack line or the defence especially in the previous three years, yet they weren't able to obtain UEFA Champions League and they continue to fail to reach the final game.
Luis Enrique already started signing new players and continue persuading others. There is Kvaratskhelia on the list which seems to be close from joining PSG and we all know how good he is with Napoli. There is also rumours about Rodrygo from Real Madrid but it seems that Pep Guardiola wants him in Manchester City too which makes things more complicated for PSG.
I also think like that because now is the moment to target new, younger players with proven achievements in big teams like Real Madrid. Because a player like Rodrygo is a player who is suitable for top teams like PSG and Manchester City to target. But it is true as you said that PSG must move faster to get a player like that before things become more complicated for him because other teams are also eyeing young players like Rodrygo and also other players needed for certain lines.