Returning Rosario to the outfield carries a different kind of risk. His slugging percentages in the lower levels of the minors were above .500, but the power largely dried up in his half-season at Double A (.412 slugging percentage). A .300 batting average that is almost all singles can play at second base or center field; it won’t work in an outfield corner. (And Rosario isn’t keeping Byron Buxton out of center.)
Rosario is going to play in the Arizona Fall League, and the word is that he’ll get some outfield time. Still, it’s possible that he won’t merit regular playing time as an outfielder.
This leaves the trade option as the most likely course.
Which to trade? Well, that depends not only on which one the Twins prefer for themselves, but on which will bring the larger return. And the Twins have sufficient needs that the return probably should be the primary concern.
Then there’s this: Jorge Polanco hit .308/.362/.452 at Cedar Rapids this season, following up on a .318/.388/.514 2012 in Elizabethton.
And yes, Polanco is a second baseman.
Edward Thoma (344-6377; email@example.com) maintains his Baseball Outsider blog at fpbaseballoutsider.blogspot.com. Follow him on Twitter @bboutsider.