This is some distant, obscure history, but I guess we should try to get it right. The long and short of it is that Flunkgate is the term we used to describe the entire situation.
CCG's first year was 2002. I
n May 2003, the school announced that 11 S/A's (10 of them football players, including fairly important players Tony Hollings and Tony Hargrove) would be ineligible for the entire 2003 season. (Both then went pro, Hollings via the Supplemental Draft, Hargrove via the regular draft.)
The NCAA investigated Tech, however, and concluded that GT's 2003 investigation was inadequate. We had overlooked a bunch of stuff, and not recognized the magnitude of the problem – all of which is what led to the 2005 penalties. (From the NCAA press release: "The report also noted that the institution investigated the matter in 2003, but failed to uncover the full scope of the problem. It was only after an investigation by the NCAA enforcement staff that the full details of the case came to light.")
The specific players identified by Tech as ineligible in 2003 (10 of the 11 being football players), and the specific players identified by the NCAA in 2005 as having been ineligible in the 1999-2005 time period (11 of the 17 being football players) would presumably have had some overlap. But that's kinda beside the point...
For purposes of the term "Flunkgate," it would have been the same systemic/administrative/procedural failure to ensure progress-toward-degree that got them all in trouble, both under GOL and under CCG. So I don't see any reason to distinguish Tech's voluntary forward-looking declaration of ineligibility in 2003 from the NCAA's backwards-looking declaration of ineligibility in 2005. It's all Flunkgate, man.
As for which coach deserves blame, the problem began under GOL. CCG arrived and inherited processes which were inadequate. Obviously as the head coach CCG's responsible for all of it, but it is easier to see why he might have given our processes the benefit of the doubt since they'd been in use for years under the previous coach.