Kelly needs to refine his command overall and become more efficient, according to Red Sox manager John Farrell, who wants to see the right-hander go deeper into games, the Providence Journal reports. Kelly walked nearly four batters per nine innings last season for St. Louis and Boston, with that number increasing to 4.7 per nine while with the Red Sox. In order to get more innings, limiting walks is important, but so is managing counts -- throwing first-pitch strikes and getting ahead in counts.