Michael Chaney will retire from the board of NAB at the end of 2015 and take up the role of chair at Wesfarmers, succeeding Dr Bob Every. Chaney, a former CEO of Wesfarmers, has served as chair of NAB since September 2005 and as a non-executive director since December 2004. He will join the Wesfarmers board on June 1, 2015 as chair-elect. Ken Henry has been announced as his successor at NAB.