1- The lost against Real was only a friendly, so that match would barely affect the "spirit" in the subsequent match. 2- This was only a friendly, and Mourinho changed to let his players play, as simple as that, if his main concern was the result, Hazard, Ramires, Cole and Cech would have started, instead of De Bruyne, Moses and the old keeper. 3- we have more options, Essien, Lukaku, Bruyne, Ginkel, Schurlle, so it means we have more player, not sure if flexibility is the word, the system is always the same: 4-2-3-1. Its only pre-season dude.