When the best teams are playing attacking football, controlling game using possession, playing with intensity, FBs playing like attackers providing width, CBs playing like midfielders by playing important role in building the game, under Jose we would have played shit football, possession is bad philosophy, FBs as defenders rather than providing width, CBs duty is to defend and clear the ball.
If Jose wasn't backed because he didn't get Perisic then so was Van Gaal who didn't get Muller, Ramos and many other players.