Gee, I don't know, maybe it's because we had:
2001-2003: Gregg Williams, 17-31
2004-2005: Mike Mularkey, 14-18
2006-2009: Dick Jauron, 24-33
So, that's a combined 55-85 record, a .392 winning percentage, with guys that were coordinators or in Jauron's case, a terrible HC to begin with. So, maybe it's time to turn the page on a "hot" coordinator and go with a proven winner.