Nothing against Billups but I think Rondo is great for this team too, and I certainly don't think he has peaked yet. I think we'd have at least an equal chance to win this year with Rondo, probably better. And in the future, I'd certainly predict Rondo to have a better career than Lawson.
Plus, Denver is checking to see what they could get for Anthony. They have no reason at this point to throw out the white flag and blow the whole thing up.
Billups is a guy I like and resect, but I'd rather have Rondo. He's a far worse shooter, but he's a much better defender, penetrator, passer, rebounder, thief, and just about everything else other than shooting.