Stephen is the co-author of "Reorg - How to Get It Right" and the co-founder and managing director of Quartz Associates. His experience of organisations spans government, business and not for profit. At McKinsey & Company, he led the organisation practice for energy clients and the firm's thinking on implementing reorganisations. Stephen has also worked as Prime Minister David Cameron's advisor on energy and environment, a vice president at Schlumberger, head of the corporate program of Asia House, and a manager in the UK Ministry of Defence. His career has taken him across the US, Europe, Middle East and India, and he is a fluent Farsi speaker. Stephen is a senior visiting fellow at Oxford University. He studied at Oxford and London Universities and spent much of his youth swimming, coming third in England at 5km.