Treviso fly-half Kris Burton, South African second row Martin Muller, Argentinian prop Francisco Nahuel Chaparro and flanker Netani Talei will all make their way to Wales for the start of the 2013/14 RaboDirect PRO12 campaign.
And Edwards believes it was necessary to complement some of his fledgling stars with wiser heads.
"There is a massive thought process gone into looking into these players," he told Wales Online.
"We were quite clear on our strategy. We have an average age of 22. The team needed experience. We needed to put a spine of a team in there.
"Having experience around the young players on the field will help them learn.
"I have been criticised for bringing in an experienced No.10, but I've got an 18-year-old centre alongside him and a 20-year-old scrum-half on the inside.
"We have to win games here. That's what the sport is all about. And with Kris Burton we are probably buying another three or four wins.
"I am fully supportive of young Welsh players coming through, but, unfortunately, you've still got to win games of rugby. People who watch us and employ us want wins on the field."
63x46.png){kind=logo}