Megaprojects are large-scale and highly complex, requiring leaders with a specific set of skills to see them successfully to completion. In this final Quarterly Research Forum by the AIRC research team, we will present the detailed and holistic development model that incorporates key findings from the fields of situational and transformational leadership. This model will be illustrated with examples from real-world megaproject leaders. There have historically been challenges in the selection of megaproject leaders, and the research team will explore these and provide insights on how some of these challenges can be addressed.