STEPHEN GREEN was Chair of HSBC between 2006 and 2010 and later Minister of State for Trade and Investment in the Coalition Government from 2011 to 2013. He has been a member of the House of Lords since 2010.SIR THOMAS LEGG served as a career civil servant in the Lord Chancellor’s Department (now the Ministry of Justice), and served as Permanent Secretary under three Prime Ministers from 1989-1998.SIR MARTIN DONNELLY was Permanent Secretary of the Departments for Business and Department of International Trade from 2010 to 2017. He worked in a range of central government departments including the Cabinet Office, Foreign Office, and Treasury.