It's not one season...it's been his entire tenure at UGA. They get loads of talent....and how many NCs or SECCs do they claim during Marky's stint in Athens?
Going in to 2010, among active coaches, he's #11 in winning percentage...ahead of him are Chris Peterson (Boise St.) and Brian Kelley (Cincinnati, now ND), one not a BCS school, the other in a weak sister BCS Conference, and Pete Carroll who has moved on. Then factor in that ahead of him are also Urban Meyer, Nick Saban, and Les Miles, all in the SEC...and he has a .769 winning percentage, has won 2 SEC Titles (sorry, I'm not a bammer, that still has meaning to most of us), and won the SECE 4 times, and has won 10+ games 6 out of 9 seasons. ONLY thing missing from a very solid 9 year run is an NC. But he had a bad year last year, and got bit by the Injury bug in 2008, and "only went 10-3" when he was preseason #1.
I admit, I view coaches, and coaches success, differently from most, and look at it more like a coach would, and more from the big picture, not last season. Richt is a damn fine coach by most any standards, or at least by mine. I think one needs to factor in that during much of that run, he's had to play the eventual national champion in LSU, FL, or Bama at least 3 times, and maybe all 5 ...not sure.