networkn: techno: no, it's the unions holding the entire nation to ransom.
Also are you claiming a captain at Qantas would need to start near the bottom at AirNZ? I don't believe that for a single second. You might be first mate for 3 months or so but no chance they get a massive degrade in rank.
You don't have to believe me go and find out for your self but I can assure you that anyone going to Air New Zealand will start as a Second Officer no matter what their experience and will hold that rank for quite some time. That's how it works in many airlines.
Once you've found out come back and let me know if what I said was correct.