Former Manly media manager and club stalwart Peter Peters pointed the finger at the board and Perry in a radio interview on Saturday for "purporting" to be Hasler's friends.
"I told this guy, 'you might know your business but I know football and I know Des Hasler is irreplaceable at the Manly Sea Eagles,'" Peters, who was forced out of the club before the finals, told Triple M.
"He looked at me in the eye and he said, 'nobody is irreplaceable.'
"Some people in clubs don't like powerful people and Des is all powerful.
"Some people purporting to be his friends are not his friends and Des knew that, he's a smart man.
"He's told everyone that he wants to move on because he thinks there are problems in administration there."
Asked if he was referring to the board and CEO, Perry, Peters said: "Exactly."
Peters said Hasler's main gripe was the board's insistence last year he meet key performance indicators, despite the fact he's guided Manly to the finals for seven straight years.
Penn declined to comment on the KPI's, but said the main reason why Manly came late with an offer was because of the significant financial pressure the club was suffering.
Penn said they had no hesitation in retaining Hasler for 2012 and fellow former player Geoff Toovey was the frontrunner to take over the following season.
"We have a history of promoting from within and that's certainly our initial thinking," he said.
"We've got no choice but to move forward everyone's going to take some time to heal.
"Stability is going to be very important for us."
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