Bill Heffernan and his contemporaries sat and watched the slow deterioration in the corporate competence and integrity of CASA, Airservices and ATSB. So are his successors.
Don't be fooled by the occasional dummy spit and rhetorical flourish by members of Senate Committees. Unless they legislate for substantive change, it's effectively pantomime. The bureaucracy knows this.
The Commonwealth's 'leadership' and 'brainstrust' are focused on sexual assault and masturbation, leaving CASA, Airservices and ATSB to run themselves.