Mannion, Rosarii: - Rossarii Mannion has worked at senior leadership levels in Ireland and across the globe. She serves CEOs, C-Suite executives and leadership teams around the world. Mannion has mastered the art of distilling real-world lessons and turning them into practical tools, presentations and exercises to help companies strengthen their leadership approach. She also works with executive leadership teams to drive their transformation strategies using a coaching approach. She has worked at Board Chair level nationally and internationally, leading high-performance organisations.