(Bloomberg) -- In just four months, Nuno Matos has dismantled the decade-long legacy of ANZ Group Holdings Ltd.’s former boss Shayne Elliott. Since taking over as chief executive officer of one of Australia’s biggest banks in May, the former HSBC Holdings Plc banker has moved to slash 3,500 jobs, shaken up its senior management and revamped the lender’s top risk and compliance positions. The blunt-talking Portuguese financier has even earned the moniker “Nunogeddon” for the drastic actions so far.  The s ...