Money can buy happiness as long as it is implemented correctly and unfortunately PSG cannot do that. They have spent quite a bit of money to sign players but they still cannot achieve positive results outside of France. They will still be kings in Ligue One but for the Champions League they will never be able to get it as long as they take the wrong steps in their development.
I think a change of coach will not change anything and the need for a proportional management attitude in processing the players is very necessary for maximum results. Because so far I haven't seen any real changes and PSG seems to have to sort out their internal problems first before talking about their next opportunities.
The PSG management tried hard to strengthen the squad and win the Champions League title. The best players in the world were added to the squad for huge sums of money by the PSG management. But their biggest mistake was that they did not hire an experienced coach. The squad had many star players. Star players are very difficult to handle. This is not possible without an experienced coach. I think this was the biggest mistake of PSG management.
But last season PSG management appointed an experienced coach like Luis Enrique. Now if the PSG management gives Luis Enrique full freedom and big funds then maybe Luis Enrique will be able to strengthen the PSG team.