The losses had piled up for three years, so the time had finally come for Katie Vazquez to show her Forsyth Central volleyball team how to win. She gave them a challenge one day at practice that was ostensibly ludicrous: Vazquez and Lady Bulldogs assistant coach Jennifer Buschell against the varsity teams’ starters, six on two, best of three sets. It turned out to be an impactful display of resilience and teamwork by two former high school volleyball teammates.