The report also said that the company was re-setting its relationships with external stakeholders in light of an "adversarial approach to engagement" under Joyce.
And the airline had brought in a stricter internal approval process for CEO share sales, the report said, noting Joyce's sale of A$17m of Qantas shares in June 2023, a few months before his scheduled retirement, contributed to a loss of trust among stakeholders.
Qantas agreed in May to pay A$120m to settle a regulator lawsuit over the sale of thousands of tickets on already cancelled flights.
The airline, which reports full-year results on August 29, is still waiting to learn how much it must pay after losing a separate lawsuit that found it illegally fired 1,700 ground staff in 2020 to stop them from taking industrial action like strikes.