All four sides will be in action for the first time on Wednesday evening - Davies and fellow former Wales international Proctor will be at Waterton Cross, Bridgend to see the Ospreys take on the Scarlets, while Blues skills coach Baber and former Wales full back Clement will be at Eugene Cross Park, Ebbw Vale for the clash between the Dragons and last year's champions, the Blues (both matches 7.15pm).
Davies said, "These games will enable us as a coaching team to have a really good look at the probables and possibles as they compete against players of their own age. We will be able to observe the style of the players, individual skills such as in the line-out and some combinations such as at half back and in the back three. Along with performances at premiership and regional level, these matches will allow us to assess the quality and potential of the players available to us."
Davies and his coaching team have begun a series of sessions with each of the regional U20 squads, with a view to preparing players for the step-up to the international environment. The team has already worked on core skills and game understanding with the Dragons squad.
He said, "It's all about pushing boundaries and increasing the intensity of training which is sometimes about changing players' mindset. I was really impressed with the attitude and ability of the Dragons U20s last week and we hope these sessions will bear fruit when it comes to training as a national squad, which will hopefully in turn help us to be competitive not only in the Six Nations but against the southern hemisphere sides at the Junior World Championship in June.
"Once the Regional Under 20 matches are complete, we will select a training squad at the end of November before narrowing that down to a Six Nations squad in the New Year."
WRU Regional Under 20 Championship fixtures (all 7.15pm)
Wednesday 29 October
Dragons v Blues - Eugene Cross Park, Ebbw Vale
Ospreys v Scarlets - South Wales Police RFC (Waterton Cross)
Wednesday 5 November
Scarlets v Dragons - Narberth RFC
Blues v Ospreys - Cardiff Arms Park
Wednesday 19 November
Dragons v Ospreys - Rodney Parade, Newport
Blues v Scarlets - Glamorgan Wanderers RFC (The Memorial Ground)