Molesworth and Featherston's Weekend Update has a good probe on Murray McCully's half-life as political strategist for the Nats. They name 16 Nat MPs expressing some level of concern with McCully's skills. It's not hard to see that bloc becoming the majority soon.
The Nats have a thing for post-election sacrifices. Michelle Boag got it directly after the 2002 result, followed shortly thereafter by Bill English. Sure, the Nats doubled their vote but they are still in Opposition. Someone has to pay the price of failure and McCully is it.
The only thing that should be holding the Nats back is timing. If Brash and Hungry hold off too long, their own jobs will be on the line. Even if the act of sacrifice is held off until 2006, there should at least be some foreshadowing of McCully's demise for the punters to chew over round the summer barbies.
It's time to sharpen those knives.