agree with look left, it does not matter who the DAS is. without a mandate for change from the government, only cosmetic changes can or will be made because reform, by definition, changes the risk profile of aviation to the government.
to put that another way, CASA provides fireproof insulation for the Government against any aviation tragedy. fiddle with CASA and if there is an accident within the lifetime of the next Parliament, then the Government, not CASA, wears it.