Oliver Oakes has resigned as Alpine team principal following an apparent disagreement with the team’s executive adviser Flavio Briatore over the decision to drop driver Jack Doohan.

Alpine announced Tuesday that Oliver Oakes resigned from his position as team principal, which was accepted by the team with immediate effect. Flavio Briatore, the team’s executive advisor, will assume Oakes’ responsibilities while continuing his advisory duties.

Oliver Oakes has resigned as principal of Renault-owned Alpine with immediate effect and former boss Flavio Briatore is taking over his duties, the British-based Formula One team said on Tuesday.