I'm deeply interested in the recruitment process for the leaders that you intend to implement. One issue in MOM and MOO1+2 was that you could get frozen out of the pool. Can leaders be trained internally, are they external entities, or what? Have you really decided yet? :)

Yes, but it's not easy to explain. Like everything else in MOO3, the game is not primarily about personnel management (although you can do some of that). Basically, when a vacancy opens, a new Leader is generated based on your race, government, and societal factors to fill the job. You don't "go shopping," and there's always another Leader available when a new position opens.