Dave Channon, who has been director of education for eight years, has left his posts in the Diocese of Derby.
He has relinquished his post as Diocesan Director of Education, directorships of Derby Diocesan Academy Trust and of the Peak Centre at Champion House, and his Lay Canonry of Derby Cathedral with effect from 31st August 2020.
On announcing his departure, Bishop Libby said: "Dave has been a highly valued Diocesan Director of Education since 2012 and was instrumental in the formation and development of the Diocesan Academy Trusts.
"I know you will join me in thanking Dave for his years of dedicated service and for his lasting legacy to the work of the DBE and DDAT within our schools.
"We send him our very best wishes for the future."
And Archdeacon Carol, chair of the DBE's board of trustees, said: "We are all going to miss Dave and his input, and I know that as trustees we will want to put in place an acknowledgment to him of all his work over the years in which he has guided the development of education while he has been in office."