Duffy was optioned back to the minors on Thursday. The expectation was that Duffy would platoon at second base with Joe Panik, but Panik has picked it up at the dish of late and it seems the Giants are content with letting him play everyday. Duffy will head back to the minors, likely to Triple-A Fresno, after batting .332/.398/.444 with Double-A Richmond prior to his callup.