Miller joined England's selection panel in 2000
David Graveney has lost his job as England's chief selector after 11 years in the role.
Former England spin bowler Geoff Miller has been appointed as the new salaried National Selector in a shake-up recommended by the Schofield Review.
Miller will head a new four-man panel, also including England coach Peter Moores and two-part time selectors Ashley Giles and James Whitaker.
Graveney has, however, been given a new job as national performance manager.
He will be responsible for monitoring the progress of the most promising young players in county cricket.
"While I am naturally disappointed to no longer be directly involved with the England team, I feel that I can play an important part in ensuring that we maintain a consistent flow of world-class talent from the county academies into our international teams at all levels," Graveney said.
He expressed pride at being associated with an England team which won eight successive Tests in 2004, recaptured the Ashes the following year and also won overseas series in South Africa, West Indies, Sri Lanka and Pakistan.
"I do acknowledge that our one-day form has been inconsistent, but I feel the team is going in the right direction," he added.
Giles believes his recent involvment with the team will aid him in his new role.
He told BBC Radio Five Live: "It's a positive that I have a good relationship with Michael Vaughan and Paul Collingwood, the two captains."
"I've come out of the dressing room quite recently, and there is a lack of players coming out of that - most go into the media and we lose too many players from the top of the game.
"I have something to give back to the England team."
The role of a full-time National Selector was one of 19 recommendations made last year by the review group headed by Ken Schofield following England's humiliating 5-0 Ashes whitewash in Australia and subsequent failure in the World Cup.
Giles will combine selection duties with his day job at Warwickshire
Miller's new position is thought to command a salary of about £80,000 a year and he will start by joining the England one-day squad in New Zealand later this month.
"It's an honour and a privilege for me to take on this role," the 55-year-old said.
One of the potential sticking points with Miller's appointment had been whether the role would interfere with his career as a successful after dinner speaker.
He will continue with his speaking duties - but plans to be more discerning about future engagements.
"The speaking is one of the parts of my life but I can be more frugal in what I select now," he said.
"I won't give it up because it is part of me. I am in the entertainment business and I enjoy it. The actual job is priority to me now but there are certain after dinner jobs I have to fulfil.
I will come in with a fresh pairs of eyes
England selector James Whitaker
"If I have to cancel one or two then so be it but as it stands I can promote the game as well as speak."
England team managing director Hugh Morris, who headed the selection process alongside ECB deputy chairman Dennis Amiss and chief executive David Collier, was delighted to have secured Miller's services.
"He has played at the highest level, possesses in-depth knowledge of the domestic game and as a member of the selection panel for the past seven years he has extensive experience of the selection process," said Morris.
Of the two new part-time selectors, the elevation of Giles is something of a surprise as he has a full-time position as Warwickshire's new director of cricket, having ended his playing career last summer.
Whitaker's only England cap came during the 1986/7 Ashes tour
The former spinner was an integral part of England's Ashes-winning team of 2005 and Morris said his extensive knowledge of modern-day cricket was the reason for his appointment.
"Ashley Giles will be able to bring a new perspective to the panel and a keen understanding of what it takes to succeed," said Morris.
Whitaker, meanwhile, captained Leicestershire to two county championships in 1996 and 1998 and also worked for the club as coach and director of cricket.
Since relinquishing his position at Grace Road in 2005, the 45-year-old - who played his solitary Test match for England during the Ashes-winning tour 1986-87 - has been working in his family's chocolate business in Yorkshire.
But Whitaker insisted he will be able to bring new ideas to the selection panel despite being out of the game for the past two years.
"I will come in with a fresh pairs of eyes," he told BBC Radio Leicester. "I believe it could be very advantageous in this position."
Miller will meet up with Whitaker and Giles on 22 January at the ECB National Cricket Centre in Loughborough to discuss their roles in the new set-up.