Owen, it is beyond the powers of us plebs. It has to be done at a high level.
The solution is simple, yet it is also difficult. All you need is a half decent media outlet to steer its attention, investigations and direction at the very issues we are tautologically mentioning and have said media throw all this at the Minister, very publicly, over and over and you will likely see at least a couple of scalps taken by Albanese. It could be just the start needed.
The inept board will also be under pressure to remove what they will see as a stain on the Ministers silk shirt, remember the role of the Board is to to protect Big Tony from any loose cannons.
One thing is certain and cannot be hidden any longer - CAsA is in trouble, it has some serious serious problems and after decades they are eeking out like a pus embodied sore that is neglected. Not even a dash of pot plant palm oil will remove the source of the infection.