A hierarchy? Interesting. Betty wasn't quite sure how well it would work, but his idea happened to be fleshed out enough that it could easily be tweaked. A Head Boy and Girl could indeed help with security measures, true, though she doubted that one single position could be enough motivation for the entire student body. Still, it had merit. Mostly, it showed her that Draco had ideas. Plans. He wasn't just a killer, and Merlin knew she needed no more of those.
"Interesting. Do you believe that a single position could be enough to entice everyone to improve their behavior and marks? Or that, perhaps, there should be something more inclusive?"
Perhaps a club. Like her own for her future recruits, except without this whole interview process. Maybe a rewards program? He'd actually gotten her to think, which was more than most of the students had done, today.