"If they are a long way (ahead) it's a problem, if we are there, it's important. And some of them, they start the Premier League in a brilliant way, we start in a very bad way.
"If we start in a very bad way and they start in a brilliant way, it's good for us."
Asked to clarify his thoughts on Chelsea's "very bad" start, Mourinho added: "That's what I read. It was a disaster. I think it was not good, but every one of the two defeats (to Everton and Basle) are not defeats with a conclusion.
"You lose a match in the Premier League, you don't lose the Premier League.
"You lose a match in the Champions League (and) you are in a more difficult situation, but you have 15 points to play for."