He took over Marshall when they were a D+. Here are the Thundering Herd's RPIs over the last nine seasons:
4, 1, 2, 2, 1, 1, 2, 6, 1.
8 out of 9 were Sweet 16 or better, and five of those were the Final Four or better.
If that were at his old UNC job (RIP ACC Allen), it would still be pretty amazing. At Marshall, that is just insane.
EDIT: And I just noticed they lost a total of one home game in the last nine seasons. And that was the year they won the national title.