This report provides an in-depth analysis of the organizational change management at the Commonwealth Bank of Australia (CBA), focusing on the turbulent period marked by money laundering scandals, financial planning issues, and insurance discrepancies. The report critically examines the leadership of Ian Narev and his shortcomings that contributed to the bank's challenges. It then details the steps taken by Matt Comyn to rebuild public trust and navigate the complex economic environment, including regulatory compliance, cultural reforms, and strategic changes. The report highlights the importance of effective leadership, ethical practices, and robust change management strategies in overcoming crises and restoring organizational stability within the banking sector. The report also emphasizes the significance of adapting to regulatory demands and rebuilding customer confidence in the face of significant setbacks.