But on a serious note, Mr Goff says working for a party or an MP in Parliament is a good apprenticeship for those with political aspirations.
"People get interested in the difference you can make in politics and the fascination of the political process and how you can move an idea forward and turn it into a reality on the ground and make a difference to people's lives. When they become MPs they can hit the ground running. It gives them a real advantage in terms of their effectiveness as MPs.
"Look at how quickly Jacinda and Grant Robertson managed to rise to the front bench. You can attribute a lot of that to the knowledge and understanding of how Parliament and the executive works. So I think it's a very effective training ground."
But Mr Franks said the number of MPs who've come from the ranks of party employees parallels the emergence of a "political class", a group of people "who've never done anything else with their lives".
He is worried such people have achieved little "other than worming their way around political process and therefore will be judged on politics as if it's a game".
"It's an insider class. They tend to be a bit contemptuous of outsiders, they tend to share more with their opponents who have a similar background than those they purport to represent. There's an absence of deep conviction and there's no external track record on which to judge them. All we know is whether they're good at the game which is basically the game of greasing."
That said, some former political staffers who now sit in Parliament are excellent MPs, he concedes. The problem is the number coming through.
He is concerned at what he sees as a burgeoning crop of party employees, "very ambitious young people expecting to progress through to politics at a young age".
"They are getting the inside running into careers because of the party selection system that in theory was designed to find people who could best represent the party's values."
How to succeed in politics MPs and their former parliamentary or party jobs:
National
Paul Goldsmith: Press secretary and speech writer for Phil Goff (Labour), Simon Upton (National) and John Banks.
Nikki Kaye: Policy researcher for Bill English.
Paula Bennett: Worked in Murray McCully's electorate office.
Steven Joyce: National's campaign manager.
Labour
Grant Robertson: Adviser to Helen Clark.
David Shearer: Adviser to Phil Goff.
Kris Faafoi: Press secretary to Phil Goff.
Jacinda Ardern: Researcher for Phil Goff and Helen Clark.
Moana Mackey: Worked for Phil Goff.
Chris Hipkins: Former adviser to Trevor Mallard and Helen Clark.
Meka Whaitiri: Worked for Parekura Horomia on secondment from Te Puni Kokiri.
Greens
Russel Norman: Assistant to Green MPs Sue Kedgley, Nandor Tanczos and Keith Locke.
Holly Walker: Media adviser.
Julie Anne Genter: Media and political adviser.
Jan Logie: Sue Bradford's executive assistant.
Gareth Hughes: Worked for the Green Party on climate change issues.