Brian Flynn deserves credit for developing the players who have put Wales in a position to qualify for Euro 2016, according to John Toshack.
As Wales boss, Toshack appointed Flynn as manager of their national youth teams in 2004.
The former Burnley player brought through Gareth Bale and Aaron Ramsey and discovered the eligibility of England-born Ashley Williams.
"Flynnie did a lot of work at intermediate level," Toshack said.
Wales, now managed by Chris Coleman, are three points clear at the top of Group B following their 1-0 win over Belgium on 12 June, with four games remaining.
Nine of the team which started against Belgium at Cardiff City Stadium were given their debuts by Toshack, who stepped down in September 2010.
Toshack acknowledged the contribution of his former international team-mate Flynn, whom he appointed as Wales intermediate manager.
Ex-Wrexham and Swansea City manager Flynn was in charge of Wales' youth teams, including the Under-21 side, and scouted for Welsh qualified players.
He left the role in 2012, and is now director of football at League One side Doncaster.
"Flynnie put the miles in," Toshack added.
"He did a terrific job going around the country getting these young players. We got them in and gave them a chance.
"We felt the average age of the team had gone over the top - it was 28/29 when we took over.
"The last match we saw, 11 of the 13 players that were used, made their debuts with us and we've gone five years.
"These players are not old by any means and yet they are rattling up 50 odd caps between them.
"I think this is their time and I will be delighted for Chris."