Marner has been an issue, and I don't think it is coincidence that it has an impact on his line mates. Tavares has 2 points in 2 games since leaving a line with Marner. Nylander and Bunting have obviously been excellent in their own right, but it is a lot easier to do well when your linemates are not struggling... And he has played with the same level of effectiveness in every game.
Muzzin and Holl have not been good for the most part, but were better against San Jose. Hutch was also bad.
Everyone else though? Our 4th line has been good since Engvall has replaced Amadio. Our 3rd line has been a great shutdown line and generate a ton of offense for a line that rarely starts in the offensive end. Sandin-Dermott are sheltered but they've done well. Rielly-Brodie have been excellent. Campbell has been excellent.
Really, if Marner's line actually produced, we would have easily won 4, if not all 5, games by now. It's not like this entire team is a disaster or getting outplayed... We have been the better team in 4/5 games.