You got to ask yourself WHY they are swinging more. Baseball has studied this and they are looking into adjusting (shortening) the strike zone because they believe it has affected offense. 'Since 2009, the average size of the called strike zone has jumped from 435 square inches to 475 square inches, according to Roegele’s research. The results: Pitchers are throwing more in the lower part of the zone, and hitters are swinging at an increased rate, knowing the tough-to-drive pitches will be called strikes.' 'This was always the most simple and logical solution to increasing offense, so it’s encouraging to hear that MLB is at least looking into it. And good on folks like Jon Roegele and Brian Mills for putting the numbers out there for everyone to see. See, analytics aren’t so bad.' http://hardballtalk.nbcsports.com/2015/02/12/report-mlb-could-change-strike-zone-to-boost-offense/comment-page-1/ 'Roegele’s study estimated 31 percent of the offensive drought could be attributed to the strike zone while Mills estimated it’s between 24 percent and 41 percent. After seeing a strong correlation among the size of the strike zone, all-time-high strikeout rates and historically low walk rates, members of the committee now are fairly certain the relationship is causative, too, and seem primed to do something about it.' 'Most agreed that raising the strike zone almost certainly would spark offense. The potential issue: More offense equals longer games, and with pace of play one of new commissioner Rob Manfred’s priorities, balancing the two remains a difficult proposition.' http://sports.yahoo.com/news/sources--mlb-could-alter-strike-zone-as-response-to-declining-offense-232940947.html