By Claire Kuwana The male-dominated sport still has a long way to go to fix its representation problem. Katie Krall has a secret, she says. Something no one outside her family, no one in baseball and no one she has talked to in the whirlwind of the seven weeks knows. As a little girl, Krall could not make it through a baseball game. Three strikes would be thrown, and Krall would head out with the batter, too full of energy to make it past a few pitches at Wrigley Field. Today, the 25-year-old is all about the sport she used to skip, and on Jan. 13, the Red Sox hired Krall as the development co…