Luis Enrique can be great as a coach especially for Neymar as Neymar played under him for a long time at Barcelona. PSG should have thought about these issues earlier but instead of thinking about good quality coaches, they just hired good quality players with high salaries. First of all the team needs a good quality manager, if a good quality manager is appointed in the team then good players will surely come in the team if there are no financial problems. Since PSC has no financial problems, if they hire good quality managers, they can take their club much further with like-minded players in their team.
Luis Enrique may be considered by PSG. PSG will definitely do well if they make the team with him.
Basically PSG can have star players and great coaches at the same time, because PSG has good finances. That way, PSG should be able to get better and stronger in the Champions League and not only in Ligue 1. Also, Luis Enrique is a great coach, but in this case we can't just relate him to Neymar because after all, Luis Enrique is too will not only coach Neymar at PSG. So yes, even though PSG can't sign Luis Enrique, basically PSG can still sign other great coaches too and not just focus on Luis Enrique.