Marner is a passer, what value is there to have Marner in the corners doing puck battles?
He doesnt do it in the regular season, and shouldnt in the playoffs either, that isnt his role.
The main issue was when he had the puck, he seldom had anyone open, or the chance to pass to anyone, so, he got smothered a lot.
this is a 'system' and lineup problem, so, if its still an issue with the next coach, then maybe its a Marner problem.
Bert-Dimi-Marner 'looked' good together and had a lot of o-zone time, but Marner and Domi are both pass first guys, and Bertuzzi cant handle the puck take a pass, or ever get open for either of them or draw any pressure off of them.