Byron's production is definitely good enough for the 3rd line. I just don't think he fits on this team. Remember, last year he wound up on the 4th line. And remember it wasn't because of injury.
He's too small to play with Drouin and Domi. It was tried and it didn't work - they couldn't maintain puck possession in the offensive zone. And imo, he doesn't have good chemistry with KK. If cj ever breaks up the Danault line, Byron's always good with Danault. But I don't see them being broken up.
So for now I have him on the 4th line, like kast year. But that will change if he develops chemistry with Kk or the Danault line is broken up.
But in the mean time, I'd like to see if Poehling, Suzuki and Evans can do better with KK and Domi. And ultimately, maybe Drouin is the problem and Byron would do fine with Domi and a different offensive pkayer.