Is player power wrong?

It seems pretty obvious that the Chelsea team were playing to get Mourinho sacked. Since he went they have suddenly now gone 12 games unbeaten.
Whatever thier reasons, whether is was Mourinho himself or the business with the team doctor, is it fair on the fans? When you go to watch your team, the very minimum you expect from them is to put in a shift and try to win the game. If it turns out that the wasn't the case and they were purposely under performing then that has got to be a massive slap in the face to the fans and an example of why there is a detachment nowadays between fans and thier clubs.

Yes its wrong it should be the other way around if the player fail to cooperate then the manager should be given the opportunity to get rid.