Back in the early 2000s, Eddie Sutton started mentioning his desire for Sean to take over the program once he retired. After a change in AD, that very scheme was worked out and we then had Sean Sutton, HC-in-waiting. It was only a mildly popular thing at the time. Almost everyone liked the idea of Sean coaching, but they wanted him to prove himself at Directional U, then come home. OSU and KSU are public universities, not sports kingdoms where one family as the say of the land (ok, we can argue that with Snyder and Boone and the like).
As you all know, the end of the Eddie era and the start/end of the Sean era were spectacular failures. The pressure to be the man after THE man is intense. "Sliding one chair over" is a huge change. Go cut your coaching teeth away from an environment insulated by your dad, and see how it goes.
In any case, I hope the wizard coaches another 10 years.