James Mikely Mantell Posey Jr. is an American professional basketball coach and former player who last served as an assistant coach for the Washington Wizards of the National Basketball Association (NBA). He played the small forward position for the Denver Nuggets, the Memphis Grizzlies, the Miami Heat, the Boston Celtics, the New Orleans Hornets, and the Indiana Pacers. Posey won NBA championships as a member of the 2006 Miami Heat and the 2008 Boston Celtics.