Played in the NBA with the Atlanta Hawks (1983-1991), Los Angeles Clippers (1991-1992), New York Knicks (1992-93 thru 1994-95[start]), and San Antonio Spurs (1994-95[end] thru 1995-96).
Atlanta Hawks All-Time Assists Leader (3,866).
Played basketball at Marquette University, 1980-1983.
NBA broadcaster for ESPN. (June 2004)
Head coach of the Orlando Magic (1999-2003), Boston Celtics (2004-2013), and Los Angeles Clippers (2013-present). Fired from position 11 games into the 2003-04 season with the Magic, after a 1-10 start.