Rafa Benitez was recently given the role of taking over the Blues until the end of the season, but it is widely reported that owner Roman Abramovich is keen on acquiring the services of the highly-coveted Catalan when he ends his sabbatical from the game.
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"I think what Pep [Guardiola] did with Barcelona is difficult to repeat," he told reporters. "Also because he had the players there. You cannot do the same thing twice, especially not in another culture.
"I remember with other cultures, they try because they think they have a formula, and it doesn't apply everywhere. No, it doesn't."
Despite the recent backlash the club has received from its fans following the dismissal of Roberto Di Matteo, Gullit believes Abramovich has earned the right to make the changes he feels are right, having overseen the most successful period in the club's history.
"Abramovich [has done] a great job at Chelsea. Development, new training ground, trophies, he also brought them trophies. So for that reason you cannot blame him. But sometimes it's a hard cookie to swallow in the way things happen. But it's his club, he can do what he likes.
"I'm afraid [for what] the consequences can be. Publicly-wise. About Chelsea. Because I love Chelsea, I love the way the club has evolved, now you have to work hard to get your sympathy back."