It's not even funny how clear it is that Trump has no idea what these jobs actually entail or who is qualified to fill them, so they're all people he knows and/or who sucked up to him. He has no other friends, and he figures that his friends need to be rewarded or are the best people. He obviously never really thought about filling these seats before the election, and now he's just looking around the room going, "Gosh... uh.... shit, Rudy? Newt? Steve? You guys can do something, right?"
That, or they're random establishment people that guys like Pence and Priebus recommend to him, and he just rubber stamps them because thinking about it too much is hard.
Meshes pretty well with the theory that he didn't plan on actually winning and was pretty blindsided when it actually happened.