“They had one in Kyrie Irving, but he was a head case!”: Bob Cousy feels the lack of a playmaker is the reason behind the Boston Celtics’ mediocre record halfway into the season

Bob Cousy believes the Celtics let go of one Kyrie Irving and are since shorn of a true playmaker, for almost 3 straight seasons now. Boston Celtics were destined to build a dynasty with the signing of Kyrie Irving and…