4. The team is energetic
The team also seems to have taken up a bit of Dutch philosophy and are running about and doing the work that is expected of them. Diego Costa, especially in the game against Newcastle seemed to be brimming with energy, the same can be said about Pedro and the rest of the Chelsea forwards.
Jose Mourinho sapped out all the energy from the team but also lamented that they did not get a proper preseason. Whether Guus has spoken to the players or changed the training regime at the club, it has worked and the Blues aren’t singing the blues anymore.