With the departures of Kyrie Irving and Al Horford, there’s been a perceived leadership void created with arguably the Celtics most talented player and most important player from last season now playing for Atlantic Division rivals. However, this summer, Jayson Tatum has grabbed the wheel. He’s taken some credit for recruiting Kemba Walker to Boston during a Jordan Brand tour in Europe and this week, he’s teaming up with Walker and teammates Jaylen Brown and Marcus Smart for USA Basketball.