Re: Former Celtics top pick Vincent joins Mavs' staff <div class='quotetop'>QUOTE </div><div class='quotemain'>DALLAS -- The Dallas Mavericks added Sam Vincent as an assistant coach Thursday to replace Rolando Blackmon, who was promoted from the bench to the team's director of player development in July.Vincent was the coach of the Fort Worth Flyers, who were the runners-up in the NBA Development League. He was also an assistant coach for Dallas in summer leagues games, and the head coach of the Nigerian National team during the 2006 world championships.After being a first-round pick by Boston in 1985, Vincent played seven NBA seasons with the Celtics, Seattle, Chicago and Orlando, averaging 7.8 points and 3.9 assists per game. He was on the Celtics' 1986 championship team.Vincent joins Del Harris, Joe Prunty and Larry Riley on Avery Johnson's staff.Copyright 2006 by The Associated Press</div>Link