Sweeney has defensive issues...on throws. I would say Keith at 2nd and Javy at SS would be better defense. But maybe the metrics say otherwise, I don't know.
But he moved Javy over to 2nd base and inserted the LH weak hitting Sweeney at SS. He easily coulda left Javy at SS and put Keith at 2nd. I see it as a rest day for Colt.