Jarmo isn't the problem, or even a problem. There's a lot of problems with the on-ice product, some are a result of personnel, some are a result of underperforming players, and some are a result of coaching.
Personnel problems:
Obviously, this is on Jarmo, and goalie personnel is an issue. I am of the opinion that seeing what Korpi and Elvis had was a fine decision. You have 2 young goalies who were ready for the opportunity, you play them. At this point, obviously it makes sense to have wanted a Lehner, but that would be the equivalent of throwing in the towel on not one but two guys that you drafted and developed before you know what they really have. What's the point of that, if not to destroy the confidence of your young players, one of whom was a total pro in backing up Bob for 4 years. Obviously we lack high end skill amongst the forwards. However, the forward lineup isn't much different than it was pre-Panarin, and Gus is pretty comparable to Saad. However, acquiring high end forward skill is much easier said than done. I don't fault Jarmo for being unable to do so, because he's far from the only GM to have this problem. I also don't fault Jarmo for losing Panarin and Duchene, because that would've happened no matter who the GM was.
Underperformance problems:
Are these caused by the GM? Pretty much everyone minus PLD is playing poorly. Even Seth is absolute garbage in the defensive zone. These can be caused by a simple bad stretch, lack of motivation, or coaching. But to pin this on Jarmo? Please.
Coaching problems:
These are caused by the GM if only for the fact that Jarmo hired Torts. The coaching problems are aplenty. The powerplay is still dogshit, and the lines are constantly being shuffled like mad, both in game and between games. Young players are being held to different standards than vets and being punished for things vets don't get punished for, on top of not getting much ice time in general. The bench is constantly shortened in close games, which causes fatigue at the top end of the lineup, and lack of development at the lower end, which doesn't bode well for current results or future player development.
Eventually, Jarmo will own the coaching problems if he lets them continue long enough. At that point, I'm willing to consider moving on from him, but the coaching staff needs changing far before I'm even willing to consider Jarmo as an issue. We knew before the season that this likely wasn't a playoff team, and now that it's happening we're calling for everyone's heads. I've been on the "Torts is holding the team back" train for awhile, but I was willing to give him a chance after the Tampa series to see if he was going to be a good long term solution in developing the Jackets next contending core. I was skeptical that he was going to be able to properly develop guys like Texier, Bemstrom, Bjork, and Milano, but I was willing to give him the chance to back up what he was saying in the player development department. The problem is, he doesn't practice what he preaches. I'm willing to continue to let him have a chance to prove me wrong up until halfway through the season, but what I see now isn't super promising. He very well may not be the right coach for developing a young team with this roster makeup. That is on Jarmo eventually, but not right now.