The part about the union might be part of it. There was a vacancy bid that went out about 3 weeks ago. It only got released a few days ago because their was a dispute with the union about how the Company was doing it. That got straightened out. The vacancy had 7 pilots needed on 767 in MIA. They probably wanted to see how many bid it. From my understanding only 3 pilots bid it, so no word if they will junior assign the remaining 4 slots or give to new hires.
FWIW- the most junior guy got awarded 767 FO in MIA.
If you want to fly out of MIA, you will have no problem.
And yes there are several waiting for OE, but we will still be short when they are done. Several pilots are in the Hawaiian pool and will be leaving soon.
As stated above, the training dept is a mess, but that is being taken care of by the new management, so don't give up hope yet.