He may not be the the top HW in the UFC anymoer but I still think he is an extremely well known fighter. One of Ken's sons goes to Eastlake High School in San Diego and Ken coaches wrestling there. I ran into someone I used to roll with that still goes to Eastlake. I also heard that Ken coached the linebackers.
I have never heard of any other MMA guys coaching high school sports.
"Kids, you need to forget the pin and go for the heel hook!"