This is great Rick Hahn speak right here.
"Rick, reporters are saying your boss is cheap and unwilling to spend for top end talent, how do you respond to that?"
"Well Jerry has a spending model that fits this move."
So out of Cease, Kopech, and Dunning the Sox were willing to move Dane. I hate giving up 6 years of Dunning and only getting a year back, but it seems like they must believe in Cease and Kopech to keep them instead.