she lived in a "different world"
That's an understatement - Under her so called "management", there was a total lack of effective engagement, with personal agendas that effectively compromised and crippled the operational management of Jetstar.
Her decisions had immediate effect, but it will take some time to undo the damage that was inflicted under her leadership.
Jboards, the Chief Pilot experiment etc etc ............
The list goes on.