20 Rules of Change Management in Organizations. When implementing change, no two organizations are the same, nor is there a ’one-size-fits-all’ approach because each organisation is different in structure, size, vision, culture, business needs and most all, each change management is different. However, despite the range of approaches to change management, there are common guidelines for delivering a successful change. The content of this presentation is intended as a tool to facilitate best practice of change management, thereby guide the actions that will result to successful change.