The laws that drive the universe.
An executive commander is a broad term for someone trained in leadership. The basic studies revolve about training organization and influence skills. How to use them with success will be for the pilots to figure out when they graduate from the universities. Traditionally, corporation executives and commanders strive to insure the collective success of a group of people. Some leaders act in the open and command the respect of the masses, but that is by no means the only way to govern, nor necessarily the best one. A truly talented executive commander needs to be able to form a hidden power structure and make it work for his own benefit. The really good ones do it so that noone realizes that fact. And the elite few make their grip on power known but treat their powers so that noone really cares they are being manipulated. Someone who has trained the skills is academically better equipped to lead than others, but the magical element is personal charisma and that can not be learnt the easy way. Of all the careers, this is the one closest to being a directly political one.