PRINCETON — AJ Pigford swears he could play tight end if Bob Surace would just give him the chance. He even provided evidence with an acrobatic interception that swung the momentum of Princeton’s Ivy League opener on Friday night. To knock that down and actually catch it just shows the brilliance of him.”It also proved to be the spark Princeton needed. “The sideline felt different, the crowd felt different,” Pigford said. We know our time’s coming, we know our plays are going to get there, we’re going to make our plays whenever we need to.”