Former Chelsea boss Carlo Ancelotti said the west London side's players are responsible for Jose Mourinho’s sacking.
The Blues relieved Mourinho of his duties at Stamford Bridge last week following their poor form in the Premier League.
Ancelotti told Goal.com: “That is the most difficult job for a coach because within a group, both one that is doing well and one that is doing badly, there are always problems to resolve.
“When things are going well, there is a risk of relaxation; when things are going badly, obviously there is a loss of confidence.
"The coach must always keep a good balance in that sense, lifting the confidence levels particularly when things don't seem to be working.”