It all started with this. It's a great post with thoughtful considerations on becoming a building principal. My comment, however, was to also think about the superintendency:
"Yes, building administrators are retiring every day, but so are superintendents. Indeed, we need courageous building principals to take on the challenge of district leadership too!"
This prompted Curt Rees (@wiscprincipal) to charge me with the following homework:
Accordingly, here is my sponsorship and advertisement, encouraging building-level principals to consider becoming superintendents.