There are female softball pitchers capable of striking out good major league hitters. That's been proven in exibitions. The combination of high velocity and underhand delivery can throw off good hitters. If I owned a major league team that needed to boost attendance I would consider signing one of these women to work in short relief situations. Male pitchers with a "submarine" delivery have done very well in the majors. Decades ago Bill Veek put a midget in the White Sox lineup as a gimmick, but the little guy walked every time he batted because his strike zone was so tiny. Signing a female pitcher would be "gimmicky", but could also help a team on the field.