If the price of a decent second baseman is the same as JBJ, I'd have to think Cora would prefer his man, Jackie. But a lot of that has to do with how much Bradley is looking forward to leaving Boston -- which returns us to the which-came-first, the Mookie or the Betts question.
Also, if analytics continue to drive the rebuild, and market trends, then we already know that a gifted regular second baseman like Pedroia is now just a commodity. Shifts and platoons are in style, and Cora won big with no regular there in '18, while the Sox have had musical second-sackers since Machado's take-out slide, which will be four years ago next April.