Juventus and Napoli failed to progress from the group stages in the Champions League, leaving AC Milan as the only team left in the competition from Serie A, and Prandelli admits that he is saddened by the situation.
"I'm bitter about the Champions League," he told Tuttosport. "All three could have qualified, yet only Milan did it by playing a game of suffering.
"Napoli were unlucky and to go out in that way was sensational. Meanwhile, Juventus were damaged in Istanbul. The game should not have gone ahead and it could have been postponed, there was time for that.
"Italian football has to grow as a movement, it needs to change its attitude and its general culture. We need to grow without taking any shortcuts."
Italy face England, Uruguay and Costa Rica in next summer's World Cup.