The reason, I want to see Rondo challenged in the playoffs before the matchup with Billups.
And to me, Bibby looks like the best PG to challenge Rondo (at least better the Cleveland jumpshooting combo Gs) Let Rondo have to work on both offense and defense. Let him have to step up now.
I believe if Bibby brings his A game, two things will happen.
1) Rondo will step up, be able to handle it and be better prepared for the Billups matchup
2) Celtics are still to good and will sweep.