On Tuesday, Joe Johnson still remains a free agent. The 41-year-old played in one game for the Boston Celtics last season, and I think that the Atlanta Hawks should consider adding him to their roster. View the original article to see embedded media. Joe Johnson has been one of the quietest stars in the history of the NBA. The casual fan probably does not realize that he has made seven All-Star Games, and from 2007-12 (with the Atlanta Hawks) he made the All-Star Game in six consecutive seasons. He had previously been out of the NBA for nearly four seasons,…