He was burned by PSG. If I were him I'd be wary of those types of clubs in the future, especially if he wants to win the CL without kowtowing to the likes of Ramos or Pique. Would have to be the right situation, not some nonsense where the players tell on him if he makes them work too hard, or if they want to play a different formation.
The Arsenals, Liverpools, Citys, Napolis, Dortmunds, and even Old Ladys of this world are far better environments for managers than Real, Barca, Bayern, or PSG these days.