James Mikely Mantell Posey Jr. is an American former professional basketball player who currently serves as an assistant coach for the Portland Trail Blazers of the National Basketball Association (NBA). He played the small forward position for the Denver Nuggets, Memphis Grizzlies, Miami Heat, Boston Celtics, New Orleans Hornets, and Indiana Pacers. Posey won NBA championships as a member of the 2006 Miami Heat and the 2008 Boston Celtics, and as an assistant coach for the 2016 Cleveland Cavaliers.