Again, the Jet Pilot wage bill will have reduced from ~$230M to ~$175M out of the total $4.5B in expenses. Standing us down (which isn't legal in NZ) would buy them enough cash for maybe another 2 months.
On those numbers it's almost hard to believe it's worth the hassle of down training. Have the guys needed fly, those that dont sit at home and get paid.
It's not a long term solution, but as elzicho mentions, it not going to make or break the survival of the company in the short term. I suspect they have bigger fish to fry than pilot efficiencies.