Fine.
1. Sack all upper management. (That was the cornerstone of my engagement survey response). Replace them with airline people who believe in the brand and the staff.
2. Sell off the entire J* Int and its franchises to anyone silly enough to buy them. Keep J* Australia as the LCC/feeder to mainline.
3. Use the money earned (because it is such a fantastic business) to replace the 747's about to be retired with 777's.
4. Use the 787-8's to replace the 767's on Domestic and long/thin international routes. Use them to eventually replace the A330's.
5. Use the A380's only out of SYD, BNE and MEL to SIN, BKK, PVG and HKG as feeders to the 777/787-9's that will hub out of there with increased frequencies from SYD, BNE. MEL, ADL, PER, CNS and DRW; that will open up all those European destinations QF used to go to.
That will do for a start.