Head coach Doug Collins revealed after Thursday’s practice that the Sixers had named three team captains. They are point guard Jrue Holiday, veteran Thad Young and newcomer Jason Richardson. For Young, the captain’s role is something that came naturally. In the locker room and on the floor, Young is always encouraging and pushing his teammates. The same goes for Richardson, the old vet who has been one of the prominent voices in the locker room since the start of training camp.