we all know that Chelsea has something very strange , I don't know why they are so bad , what I think is that they can't find the right technical director, they have to look for someone with the level of Mou, Pep Guaridola, Ancelotti , Zidane , because it will be very difficult if they don't do something quickly, they have a very good team, but I know that sometimes it is difficult to manage players who are quite good, the technical directors are not used to having so much Quality in one team, I could say that Real Madrid have more experience in this regard, that is why this type of team takes the technical Directors that are Considered the best in the World.
I heard that he was on his way to PSG as well, maybe Chelsea offered but then PSG counter offered with something even better? Considering that PSG truly needs him and Chelsea has other priorities, I would guess that PSG will do better in the end. I do not really consider this as a trouble because in the end we are talking about two super rich clubs and they can do whatever they like.
Chelsea however, needs two things as priority, first of all get a decent manager, not easy to find these days, and secondly get the higher up executives to not really bother the football side, leave them be. Look at what happened when Potter was around, they screwed around and got big budget and ended terribly, let the football people do the football things.