The Cleveland Cavaliers front office on Monday decided not to renew the contract of general manager David Griffin, who was with Cleveland the past three years and helped the Cavs to their first NBA championship in 2016.

After extensive talks between Griffin and Cavaliers owner Dan Gilbert, no agreement was reached.

Sources close to the situation said LeBron James, who has had a say in front office decisions in the past, was not consulted.

According to Bleacher Report NBA writer Howard Beck, a source said LeBron was "disappointed" by the decision and "concerned" about what Griffin's departure means for the Cavs future.

In April, James told ESPN: "It makes no sense why he shouldn't get an extension. He's pulled every move--he's tried to make every move happen--to better this team to be able to compete for a championship. So we wouldn't be in this position, obviously, without him and without the guys that are here -- from the coaching staff to the players to Griff. He's been a big piece of it."