Hugh Morris has left his position as managing director of England cricket to take a role with Glamorgan.
Morris is returning to his former county Glamorgan as chief executive - a position vacated when Alan Hamer revealed he would be stepping down.
Morris, who was installed in the aftermath of England's 5-0 Test defeat in Australia in 2006/07, has overseen three consecutive Ashes wins in the role.
He said: "This has been a remarkable period in the history of cricket in England and Wales and I have been extremely proud to having been able to play a part in it.
"In my time at the ECB I have been fortunate to work with some extremely dedicated and talented cricketing people and I thank them and the Board all for the support they have given me and their contribution to the success of the England teams.
"It has been my privilege to work with Andy Flower, the England team director, during the last four years and congratulate the players on their three Ashes series successes, being the No 1-ranked team in the world in all three formats of the game, and also winning one ICC Global event and being runners-up in another.
"I am sure they will go on to even greater achievements in the future."
David Collier, the ECB chief executive, added: "Hugh has been an influential figure within the ECB since its inception in 1997 and his vision has helped deliver this outstandingly successful period in our cricketing history.
"He will be sadly missed at Lord's by all the ECB staff and at Loughborough where he provided the blueprint for the widely admired National Cricket Performance Centre. We all wish him well on this latest phase of his career with Glamorgan County Cricket Club.
"We will now begin a recruitment process for a replacement and I am confident that we will attract the calibre of person who can continue and build on England's successes at all levels."