Deputy Leader of the Labour Party (UK) of the Party until a new leader is elected. If a vacancy in the leadership occurs while the Labour Party is in government, then the Cabinet, in consultation with the National Executive Committee of the Labour Party, chooses a new leader, who serves until a new leader is elected. To date, the only Deputy Leaders who have gone on to become the elected leader of the Labour Party are Clement Attlee and Michael Foot. Margaret Beckett briefly served as Labour leader following the unexpected death of John Smith in 1994. Harriet Harman was leader after Gordon Brown resigned in 2010
Labour Party leadership of Jeremy Corbyn Shadow Cabinet. He appointed his leadership campaign manager and long-standing political ally John McDonnell as Shadow Chancellor, leadership opponent Andy Burnham as Shadow Home Secretary, and Angela Eagle as Shadow First Secretary of State to deputise for him in the House of Commons. Corbyn promoted a number of female backbench MPs to Shadow Cabinet roles, including Diane Abbott, Heidi Alexander and Lisa Nandy, making his the first Shadow Cabinet with more women than men. Early in Corbyn's leadership of the Labour Party, an Economic Advisory Committee was formed, initially consisting of the Nobel Prize-winning economist Joseph Stiglitz, Professor of Economics