I'm wondering if the Celtics defense is going to be more effective against the Pistons than against the Hawks or Cavs because there is no glaring need to double one guy. The Celtics can simply stick to their normal defensive rotations. The only guy who could really kill us is Chauncey, and he's clearly still hobbling.
I actually think the C's defense is more suited for stopping a single guy, and can be defeated most easily by a team that moves the ball around, and have multiple guys who can kill you. This is a big reason why the C's couldn't blow them out last night. The C's were playing GREAT, but they just couldn't open the gap, mainly because Detroit was always able to make that extra pass, and get the open shot (the free throws didnt hurt either of course)
On the other hand, I think the C's offense matches up well with the Pistons defense. The C's move the ball well, but also have good individual matchups.
Because of this, I expect this to be a close, but high scoring series. The Pistons will score more than they did last night (they missed some wide open shots), and the C's will continue to score more as well.