Former Barcelona head coach Quique Setien believes Lionel Messi is hard to manage, adding that the Argentine's enormous reputation meant he was difficult for the coach to criticise while in charge at Camp Nou.
Setien took over Barca in January after the club sacked Ernesto Valverde, but the ex-Real Betis manager lasted just over six months in the post before he too was relieved of his duties in August.
Barca's stunning 8-2 defeat in the Champions League was the final straw for Setien, who completed a season at Camp Nou that saw the club fail to win a trophy.
After the season Messi stunningly attempted to engineer a way out of the club, before ultimately withdrawing his request when it became apparent he would be forced into a legal battle with Barca.
In an interview with former Real Madrid and Spain coach Vicente del Bosque for El Pais, Setien spoke about the difficulty of managing a player like Messi – winner of six Ballon d'Or awards and someone Setien considers the greatest to ever play the game.
"I think Messi is the best of all time," Setien said. "There have been other great players who have been great, but the continuity that this boy has had throughout the years has not been had by anyone.
"Leo is difficult to manage. Who am I to change him! If they have accepted him as he is for years and have not changed him.
"There's another facet beyond just the player and it's more difficult to manage. Much more difficult. It's something inherent in many athletes that can be seen in the Michael Jordan documentary ("The Last Dance"). You see things you don't expect.
"He's very reserved but he makes you see the things that he wants. He doesn't talk much."
Setien believes that in hindsight, he would have been better off making decisions with the club as a whole in mind, rather than any individual players.
"After leaving what I am clear on is that at certain times I should have made other decisions, but there's something above you: the club.
"And it is above the president, the player, the coach. It's the club and the fans. They are the ones to whom you owe the greatest respect, and you have to do what is most convenient for the club as a whole."