I don't understand Georgia at all. Richt had a better overall record there than Dooley, a far better bowl record than Dooley, and an equal number of top 10 finishes in a decade less time on the job.
In 25 seasons, Dooley won 3 outright SEC titles. They finished as co-champions in 3 other seasons, beating the other co-champ head to head in 1 of those 3 years.
Richt reached the SEC title game 5 times in 15 seasons, going 2-3 in those. On 1 other occasion, he tied for the SEC East but lost the head-to-head tiebreaker.
Tough to compare the SEC achievements because of the different formats in place, but the frequency of being near the conference title is reasonably similar. Really the only separator is the one national championship Dooley captured.
If Dooley is their gold standard at Georgia, then calling Richt an underachiever looks ludicrous to me. If Richt is a disappointment, please sign me up for a 15-year tenure just like his.