Saints to interview Aaron Glenn on Jan. 10th [Nick Underhill: Glenn probably gets an in person 2nd interview in a couple of weeks]

Very good examples. 2. Out of how many? But they also never won superbowls either, which was part of the original criteria. I can concede to these two, because I think we'd all agree both are good enough with current coaches to win one, and still may this year.
As of now there are only 8 out of 32 defensive HCs so the % are not there, so your analogy is skewed