There’s correlation. And he coaches at one of the best programs in all of CFB. And that HC, his players, beat writers, and the premier agent in the business all think he’s an elite coach.
There’s a problem with your numbers as multiple posters have pointed out.
You have a limited and faulty data set and are trying to extrapolate some big takeaway to say it’s too risky when everyone already agrees that it’s a risky hire.
The information you don’t have (leadership, organizational, communication ability, connections, CEO skills, whatever he shared w JW and the search team to demonstrate those things) is what you don’t know and might mitigate the risk to an acceptable level.
No one here is saying “we should always hire position coaches” or “this will for sure work out” or whatever else nonsense you’re attributing to ppl. Everyone agrees it’s sn out of the box hire with wide variance in outcomes - I think that’s fun.