FILE - In this May 26, 1990 file photo, Detroit Pistons coach Chuck Daly voices his disapproval during Game 3 of the Eastern Conference NBA basketball finals against the Chicago Bulls. The FBI investigated a series of threatening letters sent to Daly at the height of his team's success during the 1989-90 "Bad Boys" championship era, newly released government records show.

FILE - In this May 13, 1987 file photo, Detroit Pistons coach Chuck Daly hugs guard Joe Dumars after the Pistons won the second round of the NBA playoffs, defeating the Atlanta Hawks 104-96, in Atlanta. The FBI investigated a series of threatening letters sent to Daly at the height of his team's success during the 1989-90 "Bad Boys" championship era, newly released government records show.

Detroit Pistons forward Jonas Jerebko(notes), right, of Sweden, celebrates with teammates after scoring in the first half of an NBA basketball game against the New Jersey Nets, Saturday, Feb. 6, 2010, in Auburn Hills, Mich. Jerebko led the Pistons with 20 points in a 99-92 win over the Nets.

New Jersey Nets guard Devin Harris(notes) walks off the court after colliding with teammate Jarvis Hayes(notes) while chasing a loose ball in the fourth quarter of an NBA basketball game against the Detroit Pistons, Saturday, Feb. 6, 2010, in Auburn Hills, Mich. The Pistons defeated the Nets 99-92.

Detroit Pistons forward Jason Maxiell(notes) (54) dunks over New Jersey Nets center Brook Lopez(notes) (11) in the second half of an NBA basketball game Saturday, Feb. 6, 2010, in Auburn Hills, Mich. Maxiell scored 13 points to help the Pistons to a 99-92 win.

AUBURN HILLS, MI - FEBRUARY 6: Jonas Jerebko(notes) #33 of the Detroit Pistons goes up for a shot attempt against past Jarvis Hayes(notes) #22 of the New Jersey Nets in a game at the Palace of Auburn Hills on February 6, 2010 in Auburn Hills, Michigan. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 2010 NBAE (Photo by Allen Einstein/NBAE via Getty Images)