If you're talking about having that trade happen today, then I'm absolutely down. Trading a 27 year old All Star PG who's still working his way back from a torn ACL for a 21 year old All Star PG is a no brainer, even with the draft pick (Which is much worse now that you've plugged in a great player into a slot where there was no player previously).
As such, there's absolutely no way Cleveland does it.