Overall, everyone involved in the club is responsible for PSG performance, the only difference is the big and small role played by each person in it. It is true that PSG has all the attributes needed to make things go according to expectations, but luck has not yet come to them and bad luck has not left them. Squad changes and a change of coach have been carried out, it looks like PSG is still in the process stage so it will take some time to return to its impressive performance.
Luis Enrique must try to find the best way out, as soon as possible. Sharp criticism will continue to flow if PSG has not shown signs of revival, something that is very normal to receive if it often makes fans disappointed.
I agree, current PSG situation with their main problem is after spending huge funds and having many star players they are still not able to win anything outside France which mean bad-luck is not leaving them and luck is not joining them for last few years with this all they need to keep things at positive way and now give good time to Luis Enrique is also good if they want to have better things in coming years he is man which can give them better results in long run with his strategy and experience, but he surely needs more favor from the management and players as well for this all.
Last defeat in England is surely the worst case for them, but it's part of the play, so they can keep playing with their positive mind-set and having faith for the win is surely going to allow them for having good results in future against all clubs in all events.