mutual consent

He left the position in July 2009, by mutual consent.

He left the job by mutual consent on 9 September 2010.

A role he later left by mutual consent following bad success.

He left that position by mutual consent after 18 months.

He left the club by mutual consent on June 2009.

He left the club in May 2011 by mutual consent.

By mutual consent they turned away from that subject, too.

He left the club by mutual consent the following month.

He left the club by mutual consent in July 2012.

I may be the leader here, but we're still kept together by mutual consent.