Superintendent/Board Relations

I am doing some research for a publication and developing the topic for my dissertation. I would appreciate some input on the following questions from board members and school administrators. Tell me stories, if you can, that would enhance the answers to these questions.

What does the school board do for the professional development of their superintendent?
What are the necessary superintendent behaviors or disciplines that lead to positive relations with the board?
What are the necessary board behaviors or disciplines that lead to positive relations with the superintendent?