Davey led the U21s to three Grand Slams and six titles in nine years

Wales and the other Six Nations have agreed a new Under-20 and Under-18 tournament, cutting the U21s.

Dai Rees combines the Wales Sevens and U20 coaching jobs, leaving no place for Davey who led the U21s to three Grand Slams and six titles in nine years.

"Obviously, I was very disappointed to hear that I would no longer be involved," said Davey.

Chris, along with Wales U21 team manager Wayne Hall, have been magnificent ambassadors WRU high performance manager Mostyn Richards

"The last nine years has been a fantastic experience, I would like to thank everyone I have worked with in my time as coach to Wales U21."

Davey's last tournament in charge of the side will be at the U21 World Cup in France, beginning on 9 June.

"Chris, along with Wales U21 team manager Wayne Hall, have been magnificent ambassadors for the Welsh Rugby Union," said high performance manager Mostyn Richards.

"The pair have given sterling service to the Union and their success at U21 level is unparalleled within the northern hemisphere.

"I would also like to pay tribute to Cledwyn Edwards who has decided to stand down as manager of the U19s, after nearly 20 years service to international age-grade rugby."

All of these appointments are potential professional coaches of the future WRU high performance manager Mostyn Richards

In other appointments, Justin Burnell will be head coach of the U19s, Rowland Phillips of the U18s.

Dai Young provided specific scrummaging expertise for the U19 Grand Slam-winning side last season, and will follow that group of players into the U20 age group as scrum coach.

Robin McBryde will carry out the same role with the U18 coaching team, while Wayne Jones joins the U20 management as assistant coach alongside Pontypridd's Simon King.

A new face to the international age grade scene is Neath assistant coach Patrick Horgan, who will help Justin Burnell within the U19 set-up alongside another WRU national skills coach, Gruff Rees.

"All of these appointments are potential professional coaches of the future," said Richards.

Wales will continue to play selected matches at Under-19 level during the Six Nations to prepare for the IRB U19 Championship in Belfast in April.

Wales will also continue to compete in IRB Sevens tournaments, although their schedule for next season has not been confirmed.

WRU National Coaching Appointments:

Under 20
Head coach: Dai Rees
Assistant coaches: Simon King and Wayne Jones
Scrum coach: Dai Young
Team manager: Nick Rose

Under 19
Head coach: Justin Burnell
Assistant coaches: Patrick Horgan and Gruff Rees
Scrum coach: Wayne Jones
Team manager: Darryl Hill

Under 18
Head coach: Rowland Phillips
Assistant coaches: Gethin Watts and Nicky Lloyd
Scrum coach: Robin McBryde
Team manager: Terry Cobner