Melo, Tiago, Poulsen, Grosso cost him mainly his job. Those signings weren't functioning in the season. Melo looks way better now, Tiago is on loan, Poulsen is gone for 5.5 mil. He was awfull as a SD but not clueless like Marotta, but then again this is DN and Marotta first ''big team'' so it's very stupid when you are in huge problems to get your things started by someone who is new to it all.
Secco also got blaimed for not selling any players, Grygera, Zebina etc. which Marotta also couldn't sell get rid of, Marotta only gets rid of non-italian great players like Trezeguet and Diego.
I'll take Secco back anyday now, just like I'll take Ranieri back