NAB has lost its second senior executive since new chief executive Ross McEwan joined the bank. Chief customer officer - business and private banking, Anthony Healy, is leaving after 10 years at the bank.Healy led the business and private bank since for two years, following eight years in New Zealand, including four as chief executive.Michael Saadie will act in the role while NAB searches for a permanent replacement. Saaide has been chief risk officer- business and private bank since 2017.Healy's departure follows the resignation of Mike Baird earlier this month. Baird, a former Premier of New South Wales, joined the bank in 2017 to lead the corporate and institutional division.He took over as chief customer officer - consumer banking in 2018.Anthony Waldron is acting as chief customer officer - consumer banking.