The Rockies’ May resurgence rests on their starting pitching, and Ty Blach has been central to the revival. The Denver native began the season at Triple-A Albuquerque, got called up as a reliever, and was inserted into the starting rotation out of necessity. Now he’s pitching like he should have been in there all along. Wednesday night, the veteran left-hander pitched seven solid innings, setting the table for Colorado’s 7-4 win over Cleveland at Coors Field in front of an announced crowd of 21,374. “You can’t control so many things in this game,” Blach said when asked about his trip from the minors to the majors this season.