The importance of strategy execution to achieve organisational objectives is increasingly recognised. However, successful execution seems to remain problematic today. Because of the gap between strategy planning and execution, the required benefits are seldom realised. This book presents a conceptual model that can specifically be applied in public sector organisations (PSOs) to help close their strategy execution gap. The MERIL-DE Model integrates the nine vital strategy execution components of Leadership, Strategic Planning, Project Management, Alignment, Performance Management (incl. the MERIL elements Measure, Evaluate, Report, Improve and Learn), Drive, Engagement, Risk Management and Stakeholder Management. Each PSO, however, needs to develop its own unique or tailor-made MERIL-DE model, referred to as the "Stratex Car", considering its own unique conditions. The Strategy Execution Framework (SAF) is presented as tool to assess the strength of each component with the Total Strategy Execution Capacity (TSEC) to determine total capacity to execute strategy. It is believed that the application of the MERIL-DE Model will significantly contribute to close this strategy gap.