It's a myriad of issues.
1. Coaching. Housley is not an NHL quality head coach. Doesn't position his players for success, doesn't implement a sound structure, doesn't adjust on the fly, doesn't motivate his men and doesn't show any passion. As a result, the team has become Charmin soft.
2. Player utilization. Over reliance on one line. Casey Mittelstadt and Tage Thompson have been over exposed. Both are still very green. There's still a ton of potential there, but we need to pump the brakes on their development and dial back their roles. Sobotka is awful, and there is still a ton of dead weight on the roster. Help is on the way - we've got some quality on the farm and picks in this draft. But that dead weight needs to go and talent needs to develop to make it happen.
3. Reticence. GM didn't make a move to bolster our squad (picking up a 2C, Dman, etc.) When we were still in the hunt. He still could, but it's way later than it should have been.
4. Team defense. There is none.
There's more. But that's mainly it.