By ESPNSTAR.com staff
Calderon left the club in 2009 and was replaced shortly afterwards by free-spending Florentino Pérez who brought in Ronaldo and Kaka on record-breaking transfer fees.
Nevertheless, he has been critical of the Perez administration which has only recently managed to achieve domestic success with a La Liga title win in the 2011/12 season.
And most recently, Ronaldo declared that he was "sad" at the club and there has been heated discussion behind closed doors in order to try and assuage the player and convince him that his long-term future lies at the Santiago Bernabeu.
But Calderon had a simple message to the Real club hierarchy as he said in an interview: "If a player is unhappy, they must go. It happened to me with Robinho; it was a dramatic saga, but he was bought for €28 million and sold for €48 million, so it was a good deal."
Calderon also believes that Ronaldo's compatriots are increasingly becoming influential within the establishment in a worrying sign for the club.
"Jorge Mendes (Ronaldo's agent) is now the club president, without having been elected by the board, they left the club in his and Mourinho`s hands," he sarcastically remarked on Eurosport magazine.
"He's made decisions; some players have come because he was their representative, the president knows what he`s done.
"Mourinho is a great coach and motivator, but sometimes behaves regrettably.
"It's an issue that needs to be addressed by the coach himself, but it seems difficult.
And in a final jab at the club, he also pointed out how he was right to have turned down the option of signing Kaka during his time in charge of the club. Kaka has struggled to shine with Los Blancos and has had to deputise for the first-team members.
"We tried to sign him [Kaka} in the first year, but we couldn`t and in the second year we could have, but the scouting reports we unfavourable for various reasons.
"Florentino decided to sign him, and now he has to find a way to solve the problem with the club."