[OhHereWeGo]

It's very uncommon for coaches to stay at one high school more than 10 years these days. Decades ago, most every school had football and basketball head coaches that had spent their whole professional life at the one school. High school coaching demands so much time these days that most head coaches don't last more than about 5-7 years. If you notice many go into some form of administration.

Agree. In addition, those who go into administration usually get out after about ten years or so. These positions demand a lot, definately not like it used to be.