If we acknowledge that every time a coach throws a fit matside (see Gable/Smith) it ages them more. Then compare Sanderson to Gable/Smith and retirement age. We could then project Cael could coach till he is 100. Its whats in his mind and his approach that makes him so successful. Now sure he might not be as successful in fun time dodgeball but maybe post 65 he'll switch fun time to pickleball.