The ODT editorial on Labour’s reshuffle highlights the coalition conundrum:
. . . With support for the Greens remaining at election night highs, it is conceivable that party could have five ministers in any future government, perhaps even including a deputy prime minister. . .
Despite the need to govern together, Labour and the Greens are not always natural friends, with each party continuing to snipe away at each other. To provide the electorate with a compelling argument on why it should vote for a Labour-Green government though, some collaboration is necessary. . .
To be lead a stable government under MMP the major party has to attract the swinging voters in the middle.
Voters need to be convinced parties could work together but the people in the middle are least likely to be attracted to Labour if they fear the Green Party will drag it too far to the left.