This document discusses managing organizational change and stress. It describes Lewin's three stages of change (unfreezing, changing, and refreezing) and Kotter's eight steps for leading change (establishing urgency, building a coalition, creating a vision, communicating, empowering broad action, creating short-term wins, consolidating gains, and anchoring changes in culture). It also defines organization development as using behavioral science methods to implement planned change and lists its four key characteristics (profound change, value-laden, diagnosis/prescription cycle, and process-oriented). Finally, it summarizes 10 common reasons employees resist change, such as fear of the unknown, loss of status, and disruption of cultural traditions.