One person unequivocally in favor of the idea is Trevor Story, who spent five years alongside Arenado with the Rockies. Speaking at Fenway Fest on Saturday, Story called it a “unique opportunity.”

Story, who played five seasons with Arenado in Colorado, thinks the third baseman has more to give than his numbers the last two years infer.

The Red Sox need another right-handed bat. They are connected with two, though adding either one would have ramifications for Casas, others.

The Cardinals' efforts to trade Nolan Arenado have reached a "standstill." Is there any hope for a deal? Read the latest at MLB Trade Rumors.