Tony Vitello pushed Keaton Winn too hard, but Giants bear more blame for injury

SAN FRANCISCO — No moves a manager makes will be scrutinized as heavily or as frequently as the daily decisions when it comes to his bullpen. So far, Tony Vitello has mostly skated scot-free. He hasn’t tried to signal for a reliever despite nobody warming, a la Gabe Kapler during his first games leading the...