I appreciate that you're finally showing some humility and common sense in your posts (thank you for the first paragraph), but again, this is not a correct statement. I guess one could quibble over the definition of "vast majority," but without time to verify right now I would guess that a very large minority (possibly even close to half) of sitting Power 5 head coaches had no head coaching experience prior to their current job. And furthermore, it doesn't matter. There is no one tried and true method of finding a successful head coach, or everyone would follow it. Prior head coaching experience doesn't necessarily make you better. Bret Bielema took the wisconsin job with no previous HC experience, James Franklin at Vanderbilt, Clay Helton at USC, Steve Sarkisian at Washington, etc., etc., etc. Conversely, you have guys like Darrell Hazell, Charlie Strong, Ron Zook, etc., etc., etc. who came into jobs with previous HC experience and were terrible.
You have an (incorrect) image in your head of what a HC is supposed to have in terms of experience, looks, speech, etc. and Claeys doesn't fit that profile so you've deemed him a failure without giving him a chance or looking at anything substantive. How about actually judging him on his accomplishments instead of measuring him against a nonsensical template?