Huh? If you go to the screen in question (which if you didn't know, is accessed through the Child Companies button, then "Change CEO/Booker"), then it includes everyone. Or at least everyone who's hireable, but definitely not only people you've already hired. And like I said, it automatically filters for "has booking/business skill"", and then puts that stat up to the top. So there's only a few dozen to filter through, and you can just use the arrow keys.