One barometer that, to me, substantiates both a bigger and a better OL last year---
In his Tuesday presser during the week we played them, Mark Richt said that they were used to Ga Tech bringing a "small" OL. He said that traditionally, we were quick and athletic but small.
His warning to his team that week was that Ga Tech was still quick and athletic. But, this time, they were bringing in "...an OL like we see every week in the SEC. They are just as big as anybody we face and can still move like they always can. On their film, and off my memory, I warn my guys: If you take 1 play off....if you freelance for even 1 play and neglect your assignment--that's the play that can go for a home run."
He added, "We can't simulate with the scout team what Ga Tech will do on offense. We try to run their plays. But, the sheer speed of it is something you just have to experience in a game. Those OL will get up on you so fast--and get you on the ground faster than you can believe-- and the play just runs right by you. Now-- they've got size, too. It'll be a challenge."
(That's my memory of what I heard him say; some joker will come up with the transcript. I promise you, it'll be darn near word-for-word.)