A couple of points on this. I don't believe that the current manager wants training done "Faster" as you put it. If anything from what I have seen is that the Manager wants to hire more dispatchers but the beancounters have said no, even though the last class that was hired had fewer folks than retired last year. For the other thing you mentioned about only calling people. This is nothing new. You interview once to create the hiring pool, then when you get approval for more dispatchers you can grab from the pool without having to interview again (Which costs because you have to fly candidates in, and dedicate time to the interviews and all that stuff).
The Flightkeys experience is silly to me. It's such a new product that most airlines aren't even using it and most of the other airlines using it are competitor airlines. Envoy only has so many people you can pull every time. Also, I would argue that FOS is way more difficult to learn than Flightkeys and yet the company seemed to care less about FOS experience than Flightkeys experience. I don't get it.
Lastly, I feel AA ignores the other two wholly owned airlines way too much. PSA is interesting because they are moving from DAY to CLT. The Piedmont thing really makes my blood boil. Supposedly the manager of dispatch at Piedmont has veto power over losing dispatchers to Mainline. Thus people who would be great mainline dispatchers are stuck at Piedmont because Sailsbury MD is a hard place to attract talent to. And its counterproductive because eventually you are going to lose those folks not to Mainline, but to United, Southwest, etc. People have had to accept other jobs outside of DIspatch in the IOC just so that they couldn't be vetoed by the Piedmont guy. And if you ask me, I think all three wholly owned should all be on Flightkeys, and have more standardized procedures so that there is a consistent product across all three. I just don't get why Envoy gets the red carpet treatment, and PSA and Piedmont seem to get the Red Headed Bastard Stepchild treatment.