In 22 minutes together, this group has found great success by spreading the floor and punishing the opponent from deep -- of all qualified lineups, they have by far the best 3-point percentage at 62.5.
You would expect Novak to be a part of such a strong shooting unit, but why this one? Two reasons:
1) Prigioni, a veteran, pass-first point guard is a master of creating opportunities for his teammates.
2) Balance. With Novak spacing the floor from the perimeter, Prigioni can play pick-and-roll with Stoudemire, while Smith and Shumpert are free to slash from the wings into an uncluttered lane.