the Jetstar excercise has already proven to management that pilots, flight attendants, check-in people etc will fly/work for those lower salaries.
The fact is, that in good times. J* did have problems getting experienced crew to work for those "lower salaries".
Remember the 457 visas for foreign crew.
The economic cycle has turned, they'll get the crew now. But once we emerge from the downturn. Those who have gained experience will look to greener pastures.