Emotions are high after a loss, and it is understandable frustrating, but the current plan has been in motion for three season, not four. Adams' first season the team decisions were absolutely influenced by others and not Adams and Granato.
So here we are, three years in, and the team is the youngest in the league and most of the up and coming players are in their early 20s. That is the reality. So either you except the reality and be patient, or you demand playoffs now, which requires a roster overhaul with older, more mature players.
What would that look like?
You fire Adams, and the new GM is given a playoff ultimatum. The way this current team makes the playoffs is by moving out valuable assets for guys that can perform now. Those trades likely involve moving Cozens, Power, Levi, Peterka and a few of the high end prospects on the farm. In return the team gets older vets coming up on UFA status or that are starting to decline and signed long term, but they are more competitive and they push this team into the playoffs. The team can't get out of the second round because there is not enough cap or depth to build the team right, but they will get you to the postseason 2 or 3 years before the UFAs move on to bigger cities and the older guys become boat anchors that prevent the team from competing while their sunset contracts sink the cap for half a decade.
That is not a great long term plan.
When your team has 9 guys that are 23 or younger and 16 guys that are 25 or younger playing significant roles on your team, there are going to be lot of wild, inconsistent efforts. Ups and downs. Good games and Bad games. The good news is that they will get better. The bad news is that it is going to take time.