Australia and New Zealand Banking Group (ANZ.AX) on Monday said Mark Whelan will replace Phillip Chronican as the head of its Australian business. Chronican, who joined ANZ as its Australia CEO in November 2009 from rival Westpac Banking Corp (WBC.AX), will leave to pursue a “non-executive career,” the bank said in a statement. Whelan joined ANZ as head of sales in 2004 and is currently the managing director for global commercial banking. He will report to Group CEO Mike Smith in his new role, effective April 3.