On the contrary, I think Moggi would've held on to whoever was willing to stay from the old guard, primarily for two reasons.
A) To give continuity to a team that knew how to win, and more importantly retain the identity of the team. It's too risky going into a lower division, with a new core and players. Given that one can't measure how long they'd need to gel together, knowing full well Juve had to be back up in one season.
B) Though there's absolutely no doubt his focus would've integrated youth in the lower division, it would however only be successful in it's transition to the a league, if they had the right kind of mentors on the pitch. Something the likes of Del Piero, Nedved, Buffon and Trezeguet have always been.
Alessio Secco and Beppe Marrotta have pretty much set the the club back a few years, because for every average player we buy, we're hurting our own mentality, objectives and nullifying funds that should be used, for less than a handful a players who not only make the difference, but also know how to. What we did this season could be termed a revolution. And it's gotten us nowhere. Instead all we needed was an evolution.