** FILE ** In this Feb. 3, 2008 file photo, Dallas Mavericks coach Avery Johnson complains to an official in the second half of an NBA basketball game against the Detroit Pistons in Auburn Hills, Mich. The Mavericks lost to the Pistons, 90-67. The Dallas Mavericks have fired coach Avery Johnson, Wednesday April 30, 2008. (AP Photo/Duane Burleson, File)