I'll save you guys the trouble of calling back:

They are hiring in to the CRJ7 (ord) and the E175 (dfw)

They are estimating roughly 300 captains per year will flow to AA

Roughly another 150 pilots leaves to other carriers per year.

With currently 1800 people on property that translates to about 6 years for flow to AA

1.5 years projected reserve.

2.5 years to upgrade

The bonus is handed to you on date of hire in one lump sum with the taxes already withheld from the check (roughly $10K after taxes)

Is that worth it for you to start at the bottom again? I dunno. Your mileage may vary!