Rondo took a 3 (his only shot) in the China game.
I actually rewatched the game just now. By my count Rondo actually had 8 assists (one wasn't counted, and the other was his only missed shot that was tipped in, but was clearly a pass off the backboard).
As for the starting lineup, especially in the 2nd quarter, I thought Chauncey and Rondo play really well off each other, as Chauncey seems to be getting very open off the ball. Rondo got him for 3 open 3's (with Chauncey making 2 of them). Was pretty interesting to watch. The only other option would be to start Curry or Gordon (since Rose needs the ball), so I think the Rondo / Billups is the best fit we've got.