Quite simple really the reason for Wilson's "sacking".
National's and Wilson's ideology on ACC are like chalk and cheese.

why the mystery ? -labour had its turn appointing its mates to board etc and now the new government is having its turn - i do think though that Labour could have been slightly cleverer in its appointments - putting a trade unionist ( essentially labour's non political branch ) in charge defines political appointees - the only mystery is that wilson himself stayed on so long post election

Any outfit that racks up a $22BILLION debt with $11BILLION of assets deserves to be sacked. Good grief If they werent up to the mark and they had any ethics or morals traits they are seriously lacking in NZ company directors they would have resigned If they couldnt carry out the idiot Socialists wishes then they should have stated this publicly so the citizens could see how dumb and away with the fairies that bunch of nutbar politicans actually were

People have criticised National for removing Ross Wilson on political grounds – they fail to mention the political nature of his appointment in the first place by Labour.

And the same goes for Jay's criticism above - the current board is loaded with Labour's 'mates'.

So what's the diff?

The tip of the iceberg. A (petty) bureaucratic organisation that never had a chance precisely because it was a PB monster, directed by political appointees and run by the (un)civil service for whom my old Collins Modern Dictionary described perfectly: BUREAUCRAT; Civil servant: Government Official (especially one who does HIS (no PC sexism then) work in an unthinking way, following all the rules very carefully and not really trying to help people) I kid you not, this is what the dictionary had. So true isn't it. Let private enterprise provide the "cover" now being not provided at a reasonable rate. Same for all other PB Govt 'waste of time' departments and ministries, especially HEALTH. Let's get the village idiots out of decision making and the "market place" back into what only REAL business people can do properly. We went from 30,000 to 45,000 PB's in just 9 years under labour and what did it get us? Absolutely nothing of any value. Somehow national has arrived at 36,000 as the ceiling for PB's, my ceiling takes a few zeros off that. The fewer the better. Governments role is the protection of our borders and the protection of us from others of ourselves, but without draconian LAWS that stifle our ability to live and let live.

Ducking - Wilson is the chairman not the CEO, while he may bear some culpability for exec decisions his is not full responsibility for the losses. Note that the Govt is "qute happy"with the currnet management team.
The Losses are paper and are due to having a heavily diversified investemnt portfoilio based aroudn long term strategies - to cover off long term liabilities. This is not the sign of "mismanagement" this is a sign of an asset investment bubble bursting.
the cost blowout is more likely to be as a result of an unfunded extension of services rather than general incompetence. So please rather than slander someone who has limited ability to respond please keep to the facts.
ACC is still the only way that we can ensure that the NZ population is able to receive some measure of cover for the things we like to do outdoors, without having an excessive compliance burden. The cost blowouts look to be about claims being made in a manner that relates to people believing that they have a right to have all claims funded and that is not medical best practice.

I recall the ruthless useless hungry for power Labour Govt in 1999 COMPLETELY DESTROYING THE CAREER OF A MR CARSON ,reasons he was too sensible. EAT THAT GOFF AND DEFEND THE INDEFENSIBLE.