How about the A330 management positions - have they been filled internally?
It depends. If they want to promote a 'mate' then the job gets advertised internally, and surprise surprise the 'mate' is successful in his/her application and gets the job.
If they want to stick it to the internal staff, they will go externally and hire somebody from the outside. It's the oldest trick in the book and they have had a decade to master this trait.
For any external applicants I would suggest a background working at McDonald's, Bunnings, Kmart or Donut King as they prefer to hire from that pool rather than promote internal applicants who are dedicated, hard working and loyal.