I saw the news of Ferrara yesterday, glad for him. I was thinking that would be somewhere I'd be happy to see Marrone go on loan if Conte didn't want to keep him, Ciro is a coach that is very familiar with the player (Juve primavera + first team, Azzurrini), I think he made him captain of the U21 as well.
Presumably he's on good terms with Conte as well, so they'd communicate well.