In case Esnaider wants to stay and honour his contract Moggi can't do squat.
I'm certain however that Moggi wants him to leave as he's stated taht Esnaider would propably leave, and that's the way he normally treats players who are not part of Juve's future plans. Why it isn't Fonseca is a mystery to me though.
Bottom line: Esnaider is a good player to have in reserve, so what's the harm ?
If he feels like staying and want's to wait for a better offer let him do that .