Briefs: Shake-up in NAB management committee and Heritage gets new chair 20 April 2012 4:38PM Briefs, The Financial Review reported speculation that Steve Tucker, head of wealth at National Australia Bank may leave the company. The newspaper, in its Street Talk column, speculated that the bank's head of retail, Lisa Gray, may replace Tucker. The column also speculated that Chris Bayliss, presently head of distribution, may be promoted to replace Gray. Kerry Betros will take over as chair of Heritage Bank from today. He replaces Brian Carter, who is retiring after 30 years. Dennis Campbell will become deputy chair and David Thorpe will join the Toowoomba-based mutual as a director. He was CEO of the Queensland Association of Permanent Building Societies and Associate Director of the Australian Finance Conference.