In my opinion AA management will have to move quickly.
Delta being the first mover will attract new hires. United’s massive expansion will attract new hires and I believe Kirby will move to quickly close pilot negotiations with a contract similar to Delta.
American and Southwest are a distant 3rd choice for new hires. By Summer 2023 it’s going to be a problem and slow their ability to grow.
The recent quick to close deals at Spirit and JetBlue show just how bad the pilot shortage is getting.