By any and all accounts, Didi Gregorius had a career year in 2015. After being traded to the Yankees in the winter, he notched career highs across the board, most importantly in playing time. A slick fielder with a rocket arm, he overcame some early fielding hiccups and (let’s be nice and call it) aggressive baserunning and was as successful as one could be in replacing a legend at one of the three most important positions on the field. Were he to repeat last year going forward, there wouldn’t be much to complain about. He’s a good fielder at shortstop and he doesn’t embarrass himself with his bat; in today’s MLB, that’s as good as gold.