"Mourinho always tries to impress people by doing unexpected things," he said.
"He shouldn't have made the comparison with (Roberto) Mancini and now the journalists will ask him about it for the rest of the season.
"He probably overestimated himself. He wanted to set the tone immediately, but he hasn't been able to lead his side on the right track.
"Jose may have underestimated the Italian championship and now he is finding it more difficult than he expected."