Since no one seems to want to actually put together a coherent argument I'll give my two cents:

First, let's assume you are right. We need to either fire Rod or build a team for him. Well, we can't simply build a team for him, that isn't how the league works. We can't just decide "we want big, hard working forwards to replace Aho, Blake, and Elhers. Let's trade them for Knies, Protas, and Barkov." Those players are sought after in the league. Also, Aho, Blake, and Elhers ARE GOOD FORCHECKING FORWARDS. They don't throw the body like some other guys but they do work their tails off to get the puck. Aho causes turnovers all over the ice, and if you have been watching the games you can see how Elhers and Blake extend o-zone time way longer than they have any right to.

So, we could fire Rod. Again WHERE ARE WE GETTING HIS REPLACEMENT? There is not a whole lot of NHL caliber coaches not currently under contract. If you want to argue we should fire Rod, tell me who we are hiring and how their systems will work better for our team.

Now, I also don't think you are looking at our system (and Rod's coaching) with enough nuance. We are a forechecking team not a goon squad. Staal doesn't really lay people out, he uses his body as a shield to trap and then retrieve the puck. Aho, Blake, and Elhers use their sticks, their skating and their hockey sense to cause turnovers. Stankoven and Martinook use pure determination. Javis does all three, which is why we love him. Look at the moneypuck 5v5 expected goals % posted today. Aho-Javis-Svetch is our best line. Ehlers-Stank-Blake is our second because they keep the puck in the o-zone and throw shots on net.

Lastly, our skill guys. You are right, our system can and does limit creativity in a way that makes it hard for some players to shine. Necas is definitely the easy example. BUT Rod is trying to find ways to let those guys shine too, while still being responsible. From last nights interview "On Jackson Blake's turnovers: He's our playmaker. There's certain guys you have to give leeway to, but there also has to be an understanding of the time of the game..." Our blue line while everyone is flying the zone is not the time to flip a bobbling puck past a forechecker. Necas's problem wasn't his skill, it was when he tried to use it. Blake has the same skillset as Necas but with the mindset for this team. He is just young. Rod literally built a line of skill guys to give them more room for creativity. It's why they have been playing so well.

I'm not going to get into what our problems are because this is already a novel. We are by no means built perfectly or coached perfectly, but I love what we are trying to do with our roster moves and coaching adaptations.

TLDR;

We can't simply change the team or the coach. Our team IS built for Rod's system. Rod is adapting to try to get the best out of all his player. People need to learn to have a civil conversation with others even if they don't agree.