
Tbf it's two different approaches that are based around the same cautious philosophy
Gaal used possession to control games / the opposition and wanted a Neymar or Bale to be the x factor and win games on their own from a solid foundation
And Mourinho wants that too, to rely on the x factor of a Griezmann or a Bale to make shit happen and win us games, but the crucial difference is he doesn't believe in possession, he believes in hoofing the ball to the opposition, and then relying on them to make a mistake so the x factor players can pounce
As many people said at the time, he's Gaal's understudy.