That was a "business" point, not a "saving money" point, HOWEVER, to have 1,400 typed pilots show up on property without the HR involved in 1,400 interviews, and initial training, a few a a time, of 1,400 pilots,, would save money.

Virgin: bought
AirTran: bought
TWA: bought
Northwest: bought
US Air: bought / merged

All recently.
Gone but not forgotten, recent history: Skybus, USA300, National (LAS 757s),
Independence.. A few more?

All add up to fewer carriers with projected increase in worldwide demand.