Education Secretary Lesley Longstone's resignation has highlighted concerns that overseas public servants are being parachuted into top roles in New Zealand without the necessary local knowledge and experience.
Ms Longstone, who came from Britain to take up the job, yesterday stepped down after little more than a year in the role.
State Services Commissioner Iain Rennie didn't believe the fact Ms Longstone came from overseas was "a relevant factor in this outcome".
"New Zealand chief executives have found themselves in similar difficult situations. I don't believe there's an issue here."
Public Service Association National Secretary Brenda Pilott said Ms Longstone's resignation came not long after another British import Janet Grossman resigned as Work and Income boss after just nine months.