You should accept if he adds 1-2 prospects. I support any moves that makes silvergun better in the present as long as it comes with at least some cost to his long-term outlook.
Remember the time that the Jays were down 2 in the 9th, and Lawrie blew up at Lind for not tagging from 3rd to score on a shallow flyball from Lawrie? Need dem RBIs. Playing with someone like that would suck.