I get what the OP and you are saying. I understand (even if I don't think it would happen).
My thing is, if we could get to number three, then why not just say there? At that point, I'd really have to consider if DW is worth all that, especially when I would be in a better position for Lance, Wilson or Fields (and their rookie contract).
But I could see a team trading a first round pick for an established player of CMC's caliber if they feel he could play a vital role towards their success.