"But every single player has had a go, has worked hard to make those little changes to tweak their technique.
"I really believe that professional players really enjoy the challenge of learning new things, and trying to achieve new things.
"That's been the most pleasing thing, the attitude to adopt the changes."
Byrne says the plans he is implementing are coming to fruition in games, with the running and passing skills of locks Adam Coleman and Rory Arnold one highlight in the opening tour match against Wales.
"I really like to see our forwards playing rugby," Byrne said.
"Sometimes forwards get put in a box of put your head down, hit rucks, I like to see our forwards use the ball.
"They're capable of doing it, it's just sometimes they're not asked to do it.
"To see them have the willingness to throw it, and it comes down to the attitude of the players as well, two young guys out on the field really enjoying their rugby and expressing themselves, it was great to see."