The Lakers went winless during Week 11, continuing a slide that has grown to 10 losses in 11 games.
The week began with a 110-97 loss to the Mavericks in Dallas.
Williams earned $475,334 during his stint with the team.
The following night, the Lakers fell in Houston to the Rockets, 113-99.
Injuries have decimated the franchise, leading to a not-so-merry-go-round in the Lakers' starting lineup.
The Lakers play one quick game at home Tuesday against the Cleveland Cavaliers, before a long road trip. Meanwhile, the Lakers have dropped significantly in the Western Conference standings.
By the end of the weekend, the Lakers stood in 13th place in the Western Conference at 14-23.
Despite playing only six games with Achilles' tendon and knee issues, Kobe Bryant is on track to be elected an All-Star starter by the fans.
Even with the Lakers sliding out of playoff contention, General Manager Mitch Kupchak gave D'Antoni a vote of confidence.
Former Lakers point guard Darius Morris was signed to a 10-day contract by the Clippers.
Finally, the D-Fenders, who represent the Lakers as their NBA Development League affiliate, will honor the late Jerry Buss on his Jan. 27 birthdate.