He may do that. But again, unless he's an idiot, he won't do it to guarantee a title in 2016--which it won't, at all--but rather to increase the probability of a title every year for several years to come--which it will, as long as the prospect cost is not so exorbitant that it becomes a net medium-term loss even allowing for the vagaries of development.And by holding out, maybe DDski can still provide the best package by offering more of the lesser (but still good) options he's got on hand. But maybe he won't be able to get Atlanta to bite on Devers and Kopech and Chavis instead; and if Atlanta doesn't budge then I think DDski will absolutely bend from this current no-Moncada, no-Benintendi stance, to get the guy he and Frank Wren want.
It shouldn't be necessary to spend either Moncada or Benintendi to get Teheran, who is a #2, not an ace, and just a year removed from a Rick Porcello season. And I'm very dicey about trading for Vizcaino. I don't think the likelihood that he will give us more value than, say, Pat Light, is certain enough to be worth spending what he will probably cost. His walk rate makes me nervous, and relievers are just inherently unstable. He's thrown less than 90 major league innings to date, and only the last 65 of that 90 have been elite. I don't like the idea of giving up a top-50 prospect for the privilege of finding out if his next 65 will be just as good.