What i said, put Marner in a system where Marner will be able to exploit his strenght and you will get the best of him. The biggest change Flrorida did fron 2022 to 2023 is not Tkachuk, it's Paul Maurice who finally bring an identity to this team and they found their identity after second half of season. That's why they finally been able to get succes in playoff. Under Maurice florida become one of best defensive team after being one of worst previous 5 and it's started with Maurice, not Tkachuk. The playoff leader of this team is not Tkachuk, it's Barkov and Florida started to have succes the moment they accepted to play as a team the Barkov way.
Personally you will ask me what are leafs identity right now and honestly i dont have any kind of idea. The 1st step is to create an identity to this team, something Dubas/Keefe failed.
put Marner in a system where the leafs will play fast and be really active, create yourself more space by creating more turnover or mistake and he will be better, no doubt about it.