This document discusses the dynamic nature of internal and external environments in schools and the driving forces for change. It explains that changes within schools can come from the internal environment like management, employees, and costs, or the external environment like customers, unions, competition, and broader societal factors. The document provides examples of how longer lunch breaks or fundraising events may initiate change and directs schools to consider what factors influence operations and who has interests in how their school is run between everyday stakeholders and those with long-term investment.