Here are some helpful links that relate to Tim's talk:
http://www.ptotoday.com/pto-today-articles/article/209-make-the-principal-your-partner
http://www.ptotoday.com/pto-today-articles/article/167-whose-rules-school-or-pto
http://www.ptotoday.com/pto-today-articles/article/176-negotiating-with-the-principal
http://www.ptotoday.com/pto-today-articles/article/111-get-the-principal-on-your-side
http://www.ptotoday.com/pto-today-articles/article/382-make-peace-with-the-principal
http://www.ptotoday.com/pto-today-articles/article/184-dealing-with-disagreements