robair.
You really cannot blame 'The Brits' for the state of affairs at CAA OZ. Almost all reflective Ozzies are Brits by extraction. Only problem here is that they amost invariably came from the less intelligent strata of the dregs of what passed for society.
Having said that; I well remember the head of Botswana DCA, some twenty years ago. So, I can sympathize with you with regard to your incumbent's lack of intelligence, if not with regard to his national extraction.