Everyone.
Managment for not filling the holes he needed to fill the last 2 years.
Coach/es for constant line juggling all season, nonsensical pairings/lines, implementing a system that completely neutered our offense, playing an injured Cory over Lou who was playing well (speculation), spoon feeding minutes to players who were playing awful, not addressing our anemic PP, and I'm sure there's more.
The officials for calling a very imbalanced series. 24 - 10, nuff said.
The players, all of them needed to be better. Not a single player showed up for more than a period of play at a time.
To be honest I'm glad it's over. Perhaps this will finally force Gillis to make the applicable changes necessary to move forward. Change the coach/es and dump some redundant assets (Raymond, Ballard, Lou etc.). I'm on the fence about what to do with the core though, I'm convinced the biggest problem right now is coaching. Having a better system that suits our players strengths, improved special teams, a coach not afraid to split the Sedins or bench players being bone heads, along with some filling of roster holes will make a world of difference IMO. Whether or not that would be enough to win it all is debatable. I'd like to see a couple more players with some more size to hopefully improve durability in the post season and insulate our smaller forwards.