a fair question but ultimately probably not one that matters
the Wings aren't gonna give up on Ned just yet especially considering he's under contract for another year anyways but he's been far too inconsistent to bring Greiss back and go into next year relying on just him and a 36 year old that's had issues of his own
I think it matters a ton.
If Greiss sucks because he sucks, you just cut him loose when you find a better goalie, no biggie, move on.
If Greiss sucks because the defense corps started giving up on the team, you probably start moving bodies around (we started this already with Walman and Juolevi).
If Greiss sucks because nobody is giving him positive guidance, fire the goalie coach.
If Greiss sucks because the team as a whole has given up on the season and has no motivation, fire Blashill and maybe the whole coaching staff.
Having one goalie's play suddenly go to hell is just a thing that happens, goalies are fickle animals, the NHL is hard, etc etc. But having two goalies both suddenly have their play go to hell is worrying and a phenomenon that you absolutely have to get to the bottom of before it f***s up even more and sets back your rebuild. Ned could theoretically be a solid starter for us for the next 5+ years, losing him for some stupid reason (i.e. coaching) would be a travesty.