Though I would say to Lynn and others who share his view that I've found that teaching is far and away the best way to learn, and practicing with beginners is the most rewarding practice I have generally speaking.
Total agreement. I love training and explaining with all ranks. It makes it clearer to me too.
But, the question was (1) chief instructor, and (2) own dojo. For those I have no interest.
Sharing the journey? Show me the mat. Let's bow in.