Dragons assistant coach Danny Wilson has been installed as head coach of Wales Under-20s.
Mark Taylor continues as U20's team manager with Wilson assisted by Byron Hayward (backs) and Ioan Cunningham (defence).
Wilson takes over from last season's U20s coach Richard Webster, the former Wales flanker.
At U18 level new WRU national coaching manager Allan Lewis is taking a hands on approach.
Also involved in the U18s are Dale McIntosh (forwards) and Gruff Rees (backs), currently coaching Aironi.
At U16 schools level Simon Davies carries on as head coach, supported by Sophie Bennett appointed as team manager.
The Women's squad will be managed by Sara Davies with Rhys Edwards as Head Coach and former international Liza Burgess continuing her Assistant Coach role.
The Sevens squad coaching team is unchanged to continue the development work now being achieved after having a great start to the IRB World series.
The personnel announcements coincide with a new link up with national squad coaches following detailed discussions between WRU head of rugby Joe Lydon and Wales head coach Warren Gatland.
"The elite pathway structure is vitally important to the success of Wales at senior level," said Wales assistant coach Rob Howley.
"This new initiative means we can ensure all our systems and structures are aligned and we work together to ensure that talented young players know exactly what we want them to achieve.
"The WRU now has an excellent team of coaches in place through the age grade system and it will be great to work together in a truly elite environment."
National Age Grade Management Teams
Team manager - Mark Taylor
Forwards coach (head coach) - Danny Wilson
Backs coach - Byron Hayward
Defence coach - Ioan Cunningham
Strength & conditioning coach - Ryan Harris
Analysts - Jonny Gardner, Gethin Jones
Team manager - Gethin Watts
Forwards coach - Dale McIntosh
Backs coach - Gruff Rees
Strength & conditioning coach - Eifion Roberts
Analysts - Craig Maloney, Marc Kinnaird
Team manager - Sophie Bennett
Head coach - Simon Davies
Assistant coach - Euros Evans
Attached backs coach - John Bryant
Attached forwards coach - Paul Young
Attached coach - Iestyn Williams
Strength & conditioning coaches - Rhodri Williams, Jason Larkham
Analyst - Marc Carter
Team manager - Sara Davies
Head coach - Rhys Edwards
Assistant coach - Liza Burgess
Strength & conditioning coaches - Josh Robinson, Sam Dodge
Analyst - Steve Bremner
Physiotherapist - Dal Lucas
Squad doctors - Meinir Jones, Steph Foulkes Moran
Team manager - Dai Jenkins
Head coach - Paul John
Assistant coach - Gareth Williams
Strength & conditioning coach - Wayne Proctor
Analyst - Marc Kinnaird