We faced two very good offensive teams in a row who each happen to have one of the top 3 small forwards in the game, and we were starting Sasha freaking Pavlovic in place of Paul Pierce and backing him up with a slender SG/SF.
I'm confident the defensive numbers will go back to what we expected.
That said, I'm not sure this team will be as good defensively as it has been in the past. Not too many great defenders on the bench, the Big 3 are a year older and a bit slower (especially KG), and JO is basically cooked from what we've seen so far. We desperately need a (healthy, athletic, strong) defensive center down low.