Complex sentence: The principal of Diamond is Mrs. Joanne Hennessy, a former English teacher, her vice principals being Mr. George Saxon (former math teacher) and Ms.Barbara Haughey (former English and Reading teacher).
Split into simpler sentences: The principal of Diamond is Joanne Hennessy, a former English teacher. Her vice principals are George Saxon (former math teacher) and Barbara Haughey (former English and reading teacher).