Mourinho’s unbeaten Blues are six points clear at the top of the Premier League and go to Sunderland on Saturday.
But Mourinho dismissed any prospect of he and his men thinking the title was already in the bag, despite one bookmaker paying out on Chelsea already.
“Complacency’s the only risk we don't have,” said Mourinho. “We have all the other risks, the risks that belong to football.
“The risk of a bad period. The risk of injuries. The risk of unlucky matches. The risk of other teams growing up, a great evolution, and becoming stronger during the season.
“Complacency is not a risk we have because it's not the profile of this group at this moment.
“We were winning 5-0 against Schalke in the 88th minute and Eden Hazard made a sprint to defend. Winning 5-0 at minute 88. They have changed.
“There was an evolution in these young people, a clear evolution. I don't think the group, as a group, can be complacent.”
Mourinho took time out to praise his fringe players, who he claimed were his new Untouchables. That was the name he gave to a select group of stars in his first spell at the club, who he felt had to be in the team.
“My Untouchables now are the ones who are not playing,” he added.
“They are responsible for a lot we are doing. I don't have one single player in this moment from the ones that are not playing a lot, from the ones who don't feel first-choice, who is not training very hard or behaving very well, or is not part of the group, who is not ready to help to play for one minute, 10 minutes, or to help from the stands.
“Life is easy when you are playing like this, when you are winning and feeling high in self-esteem. It's easy for a player like this.
“But life is difficult when you are not playing, because players were born to play. All these guys in my squad are absolutely fantastic. I'm so happy with them.”
