@BTP didn't get a chance to answer your post to me (attached above) before the GDT was closed. Thought it made sense to do it here.
- To your comment that most Matthews goals have been passes from Marner. Matthews scored 40 goals in his rookie season. At the age of 22, Matthews produced at a 45 goals, 88 point pace in 2019, playing with Marleau, Johnsson and Kapanen. Yes, very bad linemates. While also dealing with injury. This year, he played 10 games with Nylander, instead of Marner. In those 10 games he scored 12 goals. Obviously, Matthews has no problems scoring without Marner. If he produced a 45 goal pace at age 22 with 3rd liners, what would he do with any quality 2nd line players?
Just to give you an idea how much help Matthews needs.
On to Tavares. Tavares was 27 in the middle of his prime in 2019, and coming off being a two time finalist for the Hart trophy in previous years on the Island. There were multiple podcasts and articles that broke down advanced stats and game tape, indicating that Marner was significantly more likely to be the beneficiary to Tavares being on his line. Not the other way around. In fact I've posted the article where an author breaks down advanced stats showing how Tavares boosted Marner (because Marner seen a significant improvement to having Tavares, while Tavares so a marginal improvement on his own). Tavares had a well documented history of boosting the advanced stats of his linemates. Additionally, it was broken down that, some players actually seen their advanced stats go down when paired with Marner. I believe it was JVR. While many here try to spin that everyone who played with him saw a boost in their production. Also, Tavares was in his first year in his hometown and likely playing on adrenalin.Tavares and Marners magic disappeared the following season..which leans more to Tavares being play driver.
This year... Marner has been awful unless put on Matthews line. Another indication that Marner needs Matthews. Nylander is producing at incredible pace, primarily not playing with Matthews. Why can he do it with the scrubs that Marner can't?