Yeah, definitely start in F (or maybe E if he arrives there, or both of them) and end up in the SC closest to the departure gate. In between, he might want to explore A Centerpoint if it's a weekday, or maybe the big new B (???) lounge. To enter, he's need to show the TATL business class boarding pass and photo ID, so it might be a good idea of have a paper copy or two of the boarding pass.