I'm not saying this to absolve Panarin, but I don't think there's many players in the league (sans McDavid and MacKinnon who tip the ice by themselves) that get those extra goals, because the team never has the puck.
And even if it could work, I don't wanna rebuild a PP merchant team with a slightly better chance at succeeding on the powerplay (which is where Panarin did have the puck and was more guilty than anywhere else) because 1) why would you do that? Again, more of the same. And 2) Every powerplay goes 1 for a quadrillion at some point, that's why such emphasis is placed on 5v5.
I totally agree with you that while we need to change the look of the team, particularly on here, people overcorrect to the point of hating skill. We don't need less skill. I think we need more skill at a lot of spots in the lineup. We need to be better at 5v5. Skill makes you better at 5v5.
I'll put it this way: if you re-made the team and happened to also add Marner, that's not something I would dismiss out of hand. Just signing Marner smells of just plugging him in and keeping the team fundamentally the same.