Former England and British and Irish Lions coach Clive Woodward named George North among those who have come through the Welsh system.
The Welsh Rugby Union elite pathway structure has been singled out for praise by the former coach who masterminded England's Rugby World Cup victory.
Sir Clive Woodward says the focus on developing quality players has helped the senior national side select from strength.
He also pinpointed the establishment of a WRU National Centre of Excellence at the Vale Resort near Cardiff as a key factor.
Writing in the Sunday Times, Woodward said: "Wales realised the importance of quality, not quantity. They have, in partnership with the Vale of Glamorgan resort, established an outstanding centre of excellence.
"They have a highly experienced, settled administration and coaching team. Rob Howley, interim coach in Australia, proved they also have succession planning in hand. The physical condition and mindset of the Wales team have clearly changed for the better."
Woodward also supported his argument by naming key Wales players he says outline his argument.
He named George North, Alex Cuthbert and Sam Warburton who are all players developed through the age grade and 7's structures in Wales.
The former Engalnd coach was explaining his views on elite performance as a priority in player development for national teams.
As the countdown continues for RWC2015, Tournament Chief Executive Debbie Jevans visited the Millennium Stadium to discuss preparations for the eight matches and reveal the positive news that 100,000 tickets for games at the home of Welsh rugby have sold in the last seven days.
Jason Harries is targeting a first win on the World Series circuit this season with Wales. The series returns to action this weekend in Dubai where Harries is part of a team hoping to build from its efforts in round one in October.
Wales skipper Jevon Groves says his side have addressed a few points from Gold Coast and aim to 'hit the ground running' in the next two rounds of the World Series, kicking off with this weekend in Dubai before heading off to South Africa next week.
Wales Sevens manager Steff Thomas is hopeful his side can build from a quarter-final spot in the opening round of the World Series in Australia when his side take part in the forthcoming double header in Dubai and South Africa.