The return to fitness of players such as captain Aaron Ramsey, fellow midfielder Ethan Ampadu and striker Kieffer Moore will strengthen Wales’ World Cup prospects.
Several other players have missed games this fall due to injury.
Bellamy, however, has used 25 players in his opening matches to ensure his wider squad feels part of what already looks like a new era for the team that agonizingly missed out on qualifying for Euro 2024.
Against Iceland, Wales came back to win for the first time under Bellamy.
They also scored after the break for the first time under his management, easing concerns that a high-tempo approach was causing Wales to slow down their games.
“This was probably the most complete performance so far,” forward Mark Harris said.
“You don’t want to lose, but he (Bellamy) just said in the locker room that reacting like that, playing our way, playing our things, keeping the ball, and even without the ball, I thought we were fantastic.”
Cabango added: “He just wants us to play bravely on and off the ball and we are accepting that.
“It’s about being ready to take the ball at any time, but also with a high line, pressing from the front, wanting to win it back. He gives you freedom, so if you give it, you have his backing.”
Wales’ players are now keen to show that belief on a bigger stage, with automatic World Cup qualification on offer for the 12 group winners by this time next year.
The 12 group runners-up, plus the four Nations League group winners, will go to the play-offs to compete for the last four places.
“I think in the first six games [under Bellamy]”It shows the ideas and the way he wants us to play works for us and hopefully we can carry that into World Cup qualification,” Cullen added.
“Topping the group is a perfect start for the coach and his staff.”