It is very natural for a big team like PSG who has spent a lot of money to be so ambitious to win the UCL title and maybe they will continue to do so until that title can be achieved. This mentality problem will only come if the PSG coach is a person who has high integrity in football and that must also be accompanied by an attitude of players who are willing to fight together and not just think about the good times at PSG. However, not only that, PSG's management must also be filled with people who are competent in their fields and if so far they still cannot overhaul their management, of course winning the UCL will also be difficult. They have to be consistent and it is not an easy thing, especially if you look at PSG, this is a new big team on the European stage, so they will still need a long time.
However, I think some of the steps taken by PSG were wrong, last season they spent a lot of money buying several star players and targeting to win the UCL, but in fact they couldn't do much in the European competition.
And this season PSG is experiencing many problems, especially the drama of Mbappe not wanting to extend his contract anymore and since Luis Enrique took charge of the PSG team it has not made the team's performance better, quite the opposite.
If they want to become a strong team and be able to win the UCL, then PSG must create a strong team framework, like Pep Guardiola did against Manchester City and they must also realize that money can never buy a title.
Mbappe is not willing to extend his contract because obviously he is not getting what he really wants to get from the team, they are not giving him the platform he desires to win more tittle to his career in his young age, now that ha still gat the capacity to perform as a young star, he needs where he will get the team support he desire and achieve more trophies and title for himself
Spending good money to get quality player to enable them win league title wasn't a bad move and couldn't be seen as one aswell but using the players appropriately with good tactics that will help them get things right is what they probably need at the moment, Luis Enrique needs improve more on his tactics and how he position the players so that he will start getting results. The recants slow down in PSG has graduated into great concerns and if Luis doesn't do anything about it sooner he may have his job on the line.