I think it should be another coach. The first name that comes to mind for me is Jose Mourinho.
mourinho will not go to psg next season and the reason is very simple: at psg, players like neymar and mbappe are headaches for coaches, the first case is that of neymar who lacks discipline, has bad behavior and does not played nothing during the whole season he is injured, so any good coach will avoid PSG while neymar is at psg, the second case is that of mbappe who due to his great talent and the dependence that the team has on him and the fact that he is french and with great influence in the national team of france it becomes very difficult for a great coach to give orders to mbappe
that's why great coaches like zidade and mourinho prefer to train teams like roma and there's a rumor that says that zidane prefers to train juventus than psg, and they're right, neymar and mbappe aren't the bosses and other players are also not 100% obedient and also frankly PSG fans have shown hostile behavior when the team loses, that's why messi left the team, that was obvious. although the press and nobody say it, but it was too obvious that the bad behavior of psg fans made messi leave the team.
You don't win the champions league quickly, city coach took many years organizing city to win the european champions league, and PSG managers and fans want results immediately, they think that a new coach in one season will already win the league of the champions, this is not possible
I wonder what PSG was thinking when they had given Mbappé authority over other players in the team. Did they think that it was going to bring them to the Champions League? Or did they think that just bringing in great attacking players to the team and ignoring the other positions is going to bring them the Champions League trophy?
Sometimes I do not understand what PSG thinks. After bringing in so many great players they are asking the question which is, why the team is not doing as well as they should? They never thought that the team was not balanced and the coach also did not have enough authority over the players. Why are so many great players, like Lionel Messi, and Neymar Junior are going to listen to a coach that does not have many achievements?