A British academic is questioning the value of Governments seeking savings by cutting back-office jobs.
The PSA has brought University of Greenwich public services director David Hall to this country.
Prime Minister John Key says the public service is bloated and the Government intends to trim back-office jobs and merge some departments.
But Mr Hall told the Sunday programme that while it's easy on the face of it to cut numbers, the end result is that more consultants are used and they are always a more expensive option.
Mr Hall said the danger of cutting public spending at this stage is that there is not yet the growth in the private sector to take its place.