Former Chelsea captain Marcel Desailly believes Avram Grant has a big task winning over the players at Stamford Bridge.
"The players are professionals and have to perform no matter who is the coach, but I know the players are very disappointed," Desailly told BBC Radio Five Live's Sportsweek.
To follow in Mourinho's footsteps will be "very difficult" according to Desailly, who added: "Mourinho was really loved by the players. When I spoke to them they were always talking about Mourinho and the way he protected them when they were in trouble. Psychologically he was a good client for the players. He knew how to motivate them.
"Grant will have a different approach. He maybe will not be loved by the players like Mourinho, but at least he will try to ensure they are professional for them to perform on the pitch.
"He's also had success in the past, not at the level or prestige of Chelsea. But he's had time so see what is going on in the club, and he is part of the Chelsea family, so because of that let's give him a chance.
"The approach Grant will have is that the past doesn't matter now, it's the future. He is the one in charge, so let's go forward. The reaction should be a positive one.
"Most of the time when clubs change coaches, no matter whether the coach has experience or not, there is still a good reaction from the players in the following games."