KALAMAZOO, MI -- Ty’Vaughn Jackson has the ultimate green light. And he doesn’t waste it. The Kalamazoo Central senior sharpshooter has embraced his role to the max, becoming the Maroon Giants’ sixth-man spark plug and turning his quick-trigger shooting into instant offense for the state-ranked squad’s 11-2 start. “He understands his role and he’s accepted that role,” Kalamazoo Central head coach Ramsey Nichols said. “He’s coming off the bench and giving us a spark, and he’s...