Freya Munro will replace Gemma Ross at the end of October.
The pair replace Stuart McLauchlan and Ian Taylor.
Attorney-General David Parker has appointed a Supreme Court judge and a Court of Appeal judge.
Chief financial officer appointed.
National rail carrier gains new chief executive.
Along with administrative issue, the panel will look at minimising phishing, trolling and abuse on .nz domain names.
The independent directors are now entirely from New Zealand.
Linda Clark has advised on many significant projects.
Linda Leonard joined Postie in 2015.
Ex-chairman Philip King is moving overseas.