The trade market is awfully thin when it comes to pitching, but there's always been the idea that those who are willing to pay heavily can at least get quality arms, if not necessarily ones commensurate with the price. Now it seems like even those willing to overpay won't be able to land a strong starter, as Braves GM John Coppolella made it very clear:
"No, we aren't trading Julio."
Of course, statements like these are always true right up until they aren't. Nothing said during this month is gospel. But it does suggest that the price for Teheran is every bit as high as has been speculated, if not higher. And in the event that it is that high, it should move into prohibitive territories for most teams.
For the Red Sox? Well, it depends on what you're asking. The Red Sox could still pry him away from the Braves. There's few players in the league who the Red Sox couldn't trade for given how ridiculous their top-4 prospects are. But that doesn't mean his price is within the range where the Sox should ever be willing to trade for him. Need should only shift the scales so much, particularly with a team like this with so many good young players and such a wide open window. The David Ortiz situation might nudge the scales a bit further, but not beyond reason.
The Red Sox' Killer B's have (improbably) arrived
Prospects will break your heart, which is what makes Boston's young trio of All-Stars so strange and amazing.
Paying ace prices for an arm like Teheran? That's a step too far. Paying ace prices to put an arm like Teheran in Fenway Park? Two steps too far.
In the right park, Teheran is a very good pitcher. He's rocking a K:BB over four, and if his career numbers aren't quite as impressive, the reality is that a pitcher having his best year at age 25 looks less like one enjoying a fluke season and more like one coming into his own. He's not as good as his 2.96 ERA would suggest given the unsustainable .235 BABIP and 80% strand rate, but he's still pretty damn good if you can put him in a park where ever fly ball to left isn't either going to catch wall or sail over it.
Fenway is not that park, and if even a heavy fly ball pitcher can survive in Fenway Park with Teheran's other peripherals, he's entirely unlikely to excel, and certainly not to the point where he's worth close to the arm and leg he'll cost the Red Sox.