We seem to hire an unusually large number of ex Jackets. Meanwhile a lot of sports coaching/management legends are hired from other teams than the team they played for. Part of that is you don’t want to hire your own guy and then have to fire him which creates bad blood. Part of that is you want new ideas.
Universities tend not to hire their own graduates as professors because they don’t want academic inbreeding. Even good universities do this.
If we look at that rather successful football team down the road as a model, the successful football coaches are not former OSU football players and the guy who just concluded a rather successful run as Athletic Director was from Notre Dame. Sure there are a couple of ex players working in media or assistant coaching, but if they ever want a head coaching or high level administrative gig, they will need to go elsewhere and prove themselves.