KOC is moving up because he fears Babbitt might be gone at #9.
Seriously, I think he's moving up to get Monroe, not Cousins. Monroe would be drafted too high at #5, but if you're sitting at #9 and hear he's going #7 or #8, then you make the deal with whatever team is willing to trade their pick.
It kind of correlates with what we've heard earlier. Monroe's agent has turned down workout requests from everyone below Utah because they allegedly have a promise from Utah that he'll be drafted by the Jazz if he falls to #9.
So if KOC has heard the Kings, Warriors or Pistons would also select Monroe, then he'll probably try dangling the Memphis pick to move up.
I don't think there's really such thing as "this guy is drafted too high" for the Jazz in this draft. They should hone in on the player they want and get him anyway they can.