"You can just tell by the way guys interact with each other, the auras, the vibes, all that stuff," Duchene said.
He said the leadership group, led by captain Nick Foligno, stuck out for doing things the right way and saying the right things.
Duchene fit right in.
"Pretty quickly too," Foligno said. "He's a very cerebral hockey player, very intuitive to how the game is, to how guys are so if anything, I think he was trying to figure everyone out at such a fast rate."
The problem was shortly after Duchene got to Columbus, he and the Blue Jackets slumped.
They went 3-1-0 in his first four games, Duchene scoring three points (one goal, two assists). But Columbus lost seven of its next 11 games (4-6-1), a stretch in which Duchene scored three points (two goals, one assist).
The Blue Jackets fell out of a playoff spot on March 21, when they lost 4-1 to the Edmonton Oilers at Rogers Place.
"That was tough," Duchene said. "After that game [in Edmonton] we were all trying to figure out what's going on. The frustrating part was for me and I know the guys in here felt the same way, I knew this was the level we could get to and it was frustrating that we just weren't.
"Nick talked in front of the team one day and he said, 'We've got to be the hunters, not the hunted. That's what we've always been.' That was something that took a little while to get, but once it really boiled down to it and it was like, 'OK, we've got to go now,' we did."
Columbus finished the regular season with seven wins in its last eight games, clinching a playoff berth in its 81st game.