When Russel Norman announced he was standing down as the Greens' co-leader, his legacy to his party seemed pretty obvious.
Norman's prime contribution has been to make the Greens more electable by burying the "whacky" label and pushing the party far closer to the mainstream economic debate.
But it now appears you can drag a party towards the mainstream but you cannot necessarily make it drink.
This was borne out on by the Greens' horror story on TV3's The Nation last weekend. The debate between the (so far) four contenders seeking Norman's job revealed a startling ignorance when each was asked if they could state the current level of a major economic indicator such as the inflation rate or the official cash rate.
It was pretty basic stuff that any politician should be able to rattle off without a second thought. But the four candidates either stared blankly and silently at the camera or indulged in wild guesswork.