Matthew Maynard says the opportunity to return to Glamorgan was too good to resist.
Maynard has tough task to restore Glamorgan's fortunes
The 41-year-old former Dragons captain has been appointed as the county's new cricket manager to work alongside coach Adrian Shaw and assistant Steve Watkin.
Maynard, who will start in September, said: "It's a fantastic opportunity and couldn't have come at a better time.
"I am pleased to have, in Adrian and Steve, two people I know well and whose cricketing philosophies I understand."
Maynard has been considering coaching offers since losing his role as England assistant coach following Duncan Fletcher's resignation as head coach in April.
He has been linked with two other County Championship sides and was also invited to work at the Indian Cricket Board's academy.
But the lure to return to the county he captained to the Championship title in 1997 proved too strong, and Maynard says he is determined to restore Glamorgan's flagging fortunes.
"I'm aware that there is a lot of work required and that it will not be an overnight transformation," said Maynard.
"However there is plenty of talent within the squad, I genuinely believe that, and we have a group of young cricketers coming through who are as good as any across the domestic game.
"It will be up to me to get the best out of the players we have, augment them with additions where appropriate, and to work as hard as I can to get Glamorgan back to the level of performance we all enjoyed in the 1990s and early 2000s."
As part of Maynard's appointment, Steve Watkin will relinquish his role as Glamorgan's academy director to concentrate on working with the first-team bowlers.
Richard Almond, currently National Cricket Centre manager will take on the running of the Under-17 and academy teams.
Glamorgan chief executive Mike Fatkin said: "We are very conscious that in Adrian Shaw and Steve Watkin we have two outstanding young coaches.
We've decided to go with what we've got and if there's an emergency we'll dip into the loan market
Glamorgan coach Adrian Shaw
"We have been very keen throughout our discussions to ensure that their talents are utilized in the best possible way.
"We believe that in the modern game it is difficult for one person to cover all of the requirements and demands of a professional team and because both Matthew and Adrian have similar outlooks on the game we are sure they will operate successfully together."
Meanwhile, Glamorgan have abandoned their search to sign an overseas bowler after missing out on a fourth target.
Australian Shane Harwood became the latest failed recruit after being forced home with a rib injury.
Fellow countryman Mark Cleary's move to Sophia Gardens was blocked after he was denied a work permit, while Glamorgan had already missed out on West Indies pair Daren Powel and Ravi Rampul.
But there was a rare boost for Glamorgan with the news that England fast bowler Simon Jones should be fit to pay in their County Championship against Middlesex on 31 July.
"If Simon does come into this team, he's going to be far superior to any overseas bowler we're going to get anyway," said Shaw.
"So we've decided to go with what we've got and if there's an emergency we'll dip into the loan market."