Billups retired following the 2013-14 season, his 20th in the league.
ESPN reported James was "surprised" that Griffin would not return despite having stalled contract negotiations throughout the year. The Cavaliers LeBron James who sources say was not consulted on the decision tweeted out support of Griffin.
According to the Vertical's Adrian Wojnarowski, 2004 Finals MVP Chauncey Billups is a candidate for the job based on his relationship with Lue and Gilbert.
At the moment, Cleveland has no picks in that draft, but it does appear to have a need for a roster shake-up, given what appeared to a clear talent disparity during its 4-1 Finals loss to the Warriors.
Gilbert has owned the team for 12½ years and in that time he has yet to come to an agreement with any of the general managers in his employ on a contract extension.
How this affects the status of LeBron James, who is still under contract with the Cavaliers through the 2017-'18 season, is unclear. Plus, many observers speculate the team ought to try to make a trade for a big-named wing player, like Paul George or Jimmy Butler, in order to challenge the Warriors for the National Basketball Association crown.
While many think James ultimately calls the shots in Cleveland, or at least exerts unparalleled sway as a player, Griffin was credited with several moves to help the team. Reports said the Cavaliers' front office encountered trouble in trade talks because of the uncertainty about Griffin.
In the release, Griffin was recognized by Gilbert for his role in helping the Cavs win their first championship in 2015-16.