The Old Trafford club found themselves eighth in the table and behind Watford and Bournemouth, after conceding 21 goals in the opening 12 games.
However, Maradona insists Mourinho is the best in the business.
“For me yes, Mou is the best.
“I would give Pep the merit of taking advantage of the launch that Johan Cruyff gave him.
“I have said on more than one occasion that tiki-taka was not invented by Guardiola. It was ‘Flaco’ Cruyff.
“At the moment Pep is able to choose any player in the world that he wants. That way tiki-taka is easier,” Maradona told Marca.