They were good last year--not great. They're serviceable this year. No more than that. That they had the lowest yards allowed in '06 tells only part of the story. Think through some alternative hypotheses about why this was the case.
They'll be a middling pass defense, at best, in 2007.

Well, so far, at least...
Points Allowed: 29.5 (rank: 28)
Yards Allow/G: 417 (rank: 28)
Pass Yds Allow/G: 272 (rank: 29)
Pass Rating: 91.3 (rank: 25)
I think they'll improve from these rankings as the season moves along. But, can we please...
please...just put to rest this notion that they are an elite defense (especially with regards to their pass defense skills)?