Vance Walberg has been fired as assistant coach of the Sacramento Kings.

Walberg was previously an assistant coach under George Karl with the Denver Nuggets as well. Walberg is credited with creating the dribble-drive offense that has been made famous by John Calipari at Kentucky.

Karl was reportedly strongly against the decision.

“This was a tough decision made after consideration of what is best for the team moving forward,” Vlade Divac said in a statement. “We want to thank Vance for his contributions to the organization and wish him the very best in his future endeavors.”