Why should you doubt Enrique's capacity? He is an experienced coach and I think he has also been very successful in managing Barcelona and PSG, but he has not been able to give the French team the Champions League title. Of course, Enrique has planned the transfer policy with the club board, although there has been no big breakthrough yet, but they have already aimed at his target. Losing Mbappe is not a disaster for PSG precisely because his departure gives Enrique more freedom in managing the team.
I also see that Mbappe's departure from PSG will not immediately make PSG worse as long as Enrique is still able to manage the PSG team so well and get the other target players he currently wants. Because PSG, which previously had a little dependence on Mbappe, must be able to be more independent in seeing its future because I think there are many other great players who are still at PSG and that will make Enrique more enthusiastic in building the performance of the PSG team next season.