The frequent line changes reeks of desperation. I feel like the Karlsson line needs changing and maybe trying Karlsson as a winger is what needs to be done as Glass is a playmaker and Karlsson is a finisher. I believe that if extended, Glass will take over top 6 pivot duties and Karlsson and Tuch will be his wingers.
The current Karlsson line is just too soft imho. Unless they can recapture the magic of last season, I think that line needs to be broken up and all lines needs to be more balanced.
2018-2019 looks like a wasted season, but 2019-2020 could be another magic season if we improve with fresh blood and guys like Gusev, Glass, and Brannstrom who could all provide big contributions are all homegrown guys which makes it even better.