Nocerino moved to Palermo as part of a deal for Amauri and is now starring this season with AC Milan.
"It's definitely one of our regrets," Cobolli Gigli told Mediagol.it. "I've said this before.
"I'm glad it turned out well for him. But he helped us to get Amauri, who until he was at Juventus had done many good things. In hindsight, however, we would have been better to offer a few million more and keep Nocerino with us."