Nelson played 11 of his 14 seasons in Boston and was on five Celtics championship teams under four different coaches. He became an assistant coach in Milwaukee after retiring as a player, then took over after coach Larry Costello resigned 18 games into the 1976-77 season. Nelson coached the Bucks for 11 seasons starting in 1976 and won seven straight division titles.
His fast-paced offenses were probably best on display with Golden State in the “Run TMC” era featuring future Hall of Famers Tim Hardaway, Mitch Richmond and Chris Mullin. Nelson said he wanted them on the court at the same time.
Nelson spent 11 seasons over two stints with Golden State. The first one was punctuated by a rift with rookie star Chris Webber, who was traded away a month into his second season. Nelson, demoralized by the trade, missed nine games that season due to illness and resigned under pressure three months later in February 1995.
In between, Nelson was fired after less than one season in New York in 1995-96, then coached in Dallas for eight seasons, missing 21 games with the Mavericks starting in December 2000 to recuperate from prostate cancer surgery.