In terms of results and performances, it was a huge success.
By winning Group B4, Wales not only secured an instant return to the top tier of the Nations League, but also all but guaranteed at least a play-off for the World Cup.
What was equally important to Bellamy, however, was creating a clear playing "identity".
He accomplished that remarkably quickly. Despite having only a few days to work with the players before his opening game against Turkey in September, Bellamy's ideals were there for all to see as a bold and adventurous Wales dominated a goalless draw they were unlucky not to win.
From that moment on, Wales were inventive and ambitious on the ball - looking to build attacks from all areas of the field - and they were relentless out of possession, pressing their opponents with an intensity which is as important as any other aspect of play for Bellamy.
"We've seen it a lot in this campaign. I feel our identity has been clear, which is more than I could have asked for. I'm really over the moon with that," Bellamy says.
"I want us to be a top team, I really do. I know there's difficult teams out there, but can we have that consistency of 'this is how we play', where we're able to have a real good go?"