Nice post and great message, Stayfocused. Also, having some sense of when things will end is a special luxury and glad you can appreciate it.
I am curious, though... you say "Even if an offer came in from another school he is done." Can you elaborate or would you rather not? Is the direction with the major so he can teach and coach? Does he have a level in mind he wants to coach?
Plenty of coaches and coach dads here of all levels so the conversations here can certainly continue. Some of those coach-related conversations have certainly helped both myself and one of my sons along the way.