Mary is a Partner in Deloitte’s Strategy and Analytics Practice, focusing on transport and UK Rail. She has held various senior roles including Strategy and Policy Director for Arriva UK Trains and Managing Director of Chiltern Railways. Prior to joining Arriva, Mary worked in policy and strategy roles in the UK power sector, responsible for understanding and influencing the commercial implications of government policy. She started her career in strategy consultancy, with PwC and Corven.