Leadsled,
The post further back was to do with the mishandling of an overspeed by the crew on an A320.
As posted - the QRH actions for an AIRBUS for overspeed CLEARLY state
AP:KEEP ON
SPEED BRAKES LEVER .... FULL
THRUST REDUCTION .... MONITOR
Whilst not officially a memory item - it essentially is- because you don't have time to consult the qrh when encountering an overspeed.
The Jetstar crew handled this extremely poorly, of which I can only assume it is due to a lack of training in the sim of overspeed events.
There is no place for handling a big jet at 41000 ft manually. Humans just can't do it as well as an autopilot to handle the reduced longitudinal stability at high altitude.