So, I'm just gonna go ahead and look at every team on the schedule, based upon waht depth chart I can find, and their official roster.
Average Front 7 Weight:
GT: 245
Alcorn State: couldn't find
South Florida: 252
Pitt:259
Clemson: 276
Bowling Green:240
Louisville:256
Duke: 259 (base nickel, so I counted one of the 3 safeties)
VT:261
UNC:257
Miami: Weirdly, their roster doesn't list weights, so I went with last years. 262
UVA:264
UGA: 263
That's an average of 257.
Among P5 teams, the average is 261.
More telling, the standard deviation among P5 (not including GT) teams is only 5.4 lbs. That means GT is approximately 3 standard deviations below the norm.
Now, I know it's a pretty small sample size, but being GT folks, you know what 3 standard deviations means. It means you're VERY small up front.
AGAIN, i'm not saying it's a disaster, because speed can kill, but I think we need to realize how the defense MUST play if it's to succeed.