If you count De Bruyne and Lukaku against him why don't you count Benzema, Varane, Di Maria, Balotelli, Zouma, Robben, Johnson and many others for him, that's what I don't understand. As for the other players are they ready? I mean Pereira, Wilson, McNair aren't playing much and Keane, Thorpe or Pearson have been chucked out on loan or sold.
There is one thing I can say about Mourinho he rarily ignored talented players De Bruyne and Lukaku refused to fight for their place and decided to leave very soon, it's mainly their faults, like Pogba is mainly responsible for his United history.