Umpiring aside, the improvement to BB%, K%, and OPS all corresponded with 2 things: Moving down in the order, and swinging more. Through Apr 13, he OPSed .155 with 20 Ks against 3 walks in 46 PAs. His swing profile looked like this: http://www.brooksbaseball.net/plot_h_profile.php?s_type=2&gFilt=&pFilt=FA%7CSI%7CFC%7CCU%7CSL%7CCS%7CKN%7CCH%7CFS%7CSB&time=month&player=543305&startDate=04/01/2013&endDate=04/13/2013&minmax=ci&var=swing&balls=-1&strikes=-1&b_hand=-1 From Apr 15 on, when Gardy moved him down in the lineup, he OPSed .597 with 21 walks and 64 Ks in 267 PAs, and his swings/pitch during this time was: http://www.brooksbaseball.net/plot_h_profile.php?s_type=2&gFilt=allmlb&pFilt=FA%7CSI%7CFC%7CSL%7CCU%7CCS%7CKN%7CCH%7CFS%7CSB&time=month&player=543305&startDate=04/14/2013&endDate=02/03/2014&minmax=ci&var=swing&balls=-1&strikes=-1&b_hand=-1