Idea for New Champion Select

Hmm.. I don't know if anyone has thought about this yet but... What if you could know whether on not your teammates can trade you a certain champion before locking said champion? Like for instance, after the "preferred champion" pick phase (or whatever it's actually called), if you wanted to trade because you're first picking to secure it with someone who's maybe last pick, there would be some sort of indicator for whether or not that other person has your preferred champion. Or maybe give players options to check other players' champion pools during select. I dunno... Just a thought I had.