Every Government needs a trouble-shooter, a senior minister who can be sent into dysfunctional state operations with the authority and organising skills to sort them out. Sir Minister Michael Cullen performed that role in Helen Clark's Government, Sir William Birch in the Bolger Government and Sir Geoffrey Palmer in Lange's. In Sir John Key's, the trouble-shooter was Steven Joyce.
As he follows Key and Bill English into retirement from politics, Joyce can look back with pride for his part in an exceptionally successful government.
He was not just its trouble-shooter, with the portfolios of economic development, transport and tertiary education at different times, he was the overseer of projects vitally important to the economy, notably the re-wiring of the telecommunications network with fibre-optic cable. He created the "super ministry" of business, innovation and employment and steered much of the state's research and development assistance to technology ventures.
Having been Associate Finance Minister to English, he moved as smoothly into the full finance role as English moved into the prime minister's suite, with hardly a dip in National's public ratings. Had National been returned to office, it is quite likely English would have stepped down at some stage in this term of Parliament and Joyce would have probably have become Prime Minister.
But instead National is in opposition facing a young popular female Prime Minister and National has chosen a younger leader. Simon Bridges made it evident at the outset of his bid for the leadership that Joyce would be a casualty of his plans to refresh the line-up and announcing his retirement on Tuesday, Joyce agreed it was time for a new team.