Walter Zenga has hit out at Palermo president Maurizio Zamparini over his short-lived spell as coach earlier this season.
Zenga only lasted until November after quitting local rivals Catania in the summer.
The Inter Milan legend said: "He disappointed me on a human level, not under a professional aspect.
"And Palermo's director of sport, Walter Sabatini, he disappointed me more than Zamparini. He disappeared the moment I was sacked.
"Having said that, I don't envy the results achieved by Delio Rossi. I have given a minimum contribution by revolutionising the team's organisational habits and training systems.
"I hope Palermo qualify for the Champions League with all my heart."