The problem with the PSG team wasn't about the poor management of the team because the management brought in good number of players to help solidify the strength of the team but they failed because at some point the players wasn't having a good relationship with each other on the field.
The Manchester City team is a typical example of a team that made good use of their money to get what they want because they got a good manager who got quality players that has helped the team to win the trophies they wanted, I think the problem that PSG has for not winning the UCL with the presence of Messi, Mbappe, Naymer and Ramos was bringing the stars when they were not in their best form.
Some how on the contrary I don't believe that PSG had a problem of the players been able to understand their selves on the pitch, I believe that the players were even understanding but didn't have a very good rhythm on the pitch rather, they most times are unable to deliver because they had a good dependence on a particular player so it reduced their ability to grow and doing better than they have been doing before now, I believe now that they don't have a particular player to depend on, chances are that they will strive to collectively get the job done just as they should at once.
I want to believe that PSG has got the best squad in their league even I'm the absence of mbappe because I know that apart from the striker in which they will be lacking currently, they still have a good defense Lin, a good midfield and even their attack isn't in bad shape so they can capitalize on that to seeing how well they will be able to make up for the striker until a good replacement arrives, just like Madrid that went a season without a pure striker and was still able to deliver even at the champions league level, I believe that PSG too can especially in their domestic league.