If we truly had an option to sign Cain at 4 years, $64M and trade Pillar for a starting pitcher with similar value (1.5-2.5 WAR), age and control then I think Shatkins would do that in a heartbeat (T.Walker, P.Corbin, Straily, I.Nova, Duffy, Chase Anderson, all randomly come to mind). I read an article on Cain yesterday that he's still super fast and his exit velocity is the same as Edwin and Springer (I'd always viewed him more of a contact guy), which gives me hope his bat would age well.