I'm going with Ital in a close one.
The 3 years down the line projections really come into play on this match up. The main players affected by this negatively are Nash and Dirk. Dirk isn't quite as old and doesn't play defense anyway so I think the decline isn't as harsh on him.
Rondo is the perfect point guard for Ital's squad. He won't have a problem letting Wade, Dirk, and Gay jack up as many shots as they want. 3 years from now, Nash will be 40 years old and is already at a huge disadvantage against the elite speed and defense of Rondo.
JBay clearly dominates this match up at the center position. Griffin is going to be a good offensive talent but the guy isn't much of a defender.
JBay gets the nod for overall team defense.
Bench, I would give the slight edge to Ital.
I wasn't as big of a fan with JBay's team as the rest of this league but JBay matches up really well here. I might have voted the other way if he had a better PG. Nash at 40 years old and Jennings just doesn't do it for me. Not a big fan of Jennings for a lot of reasons.