I think Berrios can be that guy, but its far from certain at this point. You have one rotation proven commodity, that's it. I wouldn't consider any of the bullpen names you listed to be shutdown. A few of them are solid, but none are shutdown. I agree that there are no guarantees, but there's a point of maximizing your potential that needs to be weighed here. If trading Santana affords you greater possibility of seriously competing down the road and you get a deal to your liking, I don't know why you wouldn't take it. This is why many wanted Dozier traded last offseason.