Griff has done some real weird stuff recently, that's the only reason why I think it could happen. Griff did draft Cedi even if Koby was the one who scouted him.
I could also see us trading Nance and getting Hart plus additional assets back.
Trading Nance for Hart makes even less sense. I hope all the Hart rumors are BS. Dude is not even close to what the Cavaliers need.