For AA not to hire steadily the next 10 years would require freezing time. Extending it two years (65 to 67) doesn't change much either in the big picture. The mandatory retirements alone drive the hiring. Every major is facing this kind of hiring issue.

AA Mandatory Retirements by Year. Doesn't include early retirements or any growth at all.

2015 - 285
2016 - 341
2017 - 424
2018 - 562
2019 - 692
2020 - 796
2021 - 830
2022 - 870
2023 - 1,003
2024 - 956

Total 6,759 in the 10 year duration of our CBA

2200 Envoy pilots
1850ish that will flow. At 50% that means 3,700 retirements are needed to send our 1850 (and assumes they won't hire in advance to front load the years with heavy retirements)
The retirements totals hit 3,700 in 2021.
So, doing the 50% flow it's still 6 years to flow our entire list to AA.

Any growth at all, and any front loading new hires to balance training just sends ourt guys faster. Lately we've been getting up to 66% of each class, so going early isn't out of the question. They've realized it lowers our average longevity, and helps their final bottom line to move our senior guys over quickly so long as it doesn't hurt the operation here.

Don't get me wrong, there is a ton of stuff they do that is just outright wrong... but thier flow since AAG took over from AMR isn't one of them, they've been performing better than agreed.