He told Il Corriere della Sera: "I did Nicola a great injustice, there's no point in beating around the bush, it's my worry. Sousa is the best coach I've ever met, very intelligent.
"But this year he aspired to something more important, we also gave ourselves a moment to reflect, he spoke with Napoli, then he returned but he wasn't motivated enough. Inzaghi is a regret, a great person.
"Football needs figures like him: I could have taken him back but I would have made another mistake. Liverani wanted Sabatini, but the mechanisms weren't triggered. Colantuono loves Salerno, he has been with us for a long time."
On sporting director Walter Sabatini, he added: "A man of recognised experience but his state of health did not allow him to be present, and therefore he did not bring what I had hoped for, when he arrived we were 3 points away from safety."