2012 Virginia Tech Defense their best ever?

So looking up some stories for tomorrow night's game, I ran across a Washington Post story about Virginia Tech DC Bud Foster and his defensive unit. The unit's goals are lofty, as evident in the following quote...

On the opening night of training camp, however, Foster laid out the sort of season-long goals only elite defenses can aspire to. One, in particular, stuck out to his players: 13 touchdowns.

That’s how many the 2006 team gave up, one less than what defending BCS national champion Alabama allowed last season.

Are they getting a little ahead of themselves? We know how much CPJ enjoys taking little quips like these for motivation...just ask Mississippi State in 2008 or Kansas last year. Should this concern Tech fans? I discuss after the jump...

Last year's VPI defense finished with a stout 3.22 rushing YPP against (2nd in the ACC), and an equally impressive 40 sacks and 49.9% pass completion% against (both 1st in the ACC). They did this without standout LBs Bruce Taylor and Jeron Gouveia-Winslow, who will await the Jackets in Blacksburg.

Does this bode ill for Georgia Tech? How do you think out offense will handle this "unmovable object"?