The Colorado Avalanche arrived at this postseason as the team nobody wanted to draw in the first round. They're leaving it, almost certainly, as a cautionary tale about championship windows and the merciless arithmetic of the salary cap.

Game 4 in Las Vegas represents Colorado's last stand against a Golden Knights team that has been surgically efficient in dismantling what was supposed to be the Western Conference's most dangerous roster. No team in NHL history has recovered from a 3-0 deficit in a best-of-seven series more than four times. The Avalanche would need to do it against a franchise that has reached the conference finals or better in five of its seven seasons of existence.

The MacKinnon question

Nathan MacKinnon entered these playoffs with something to prove after a regular season that, by his standards, qualified as merely excellent rather than transcendent. He has been good against Vegas—not transformative. The supporting cast that carried Colorado to the 2022 Cup has aged, departed, or both. Mikko Rantanen's trade to Carolina in February gutted the top line. Gabriel Landeskog remains a memory more than a presence. The depth that once seemed bottomless now looks like a puddle.

MacKinnon at 30 remains an elite player. Whether he remains an elite player surrounded by enough talent to matter is the question Colorado's front office will spend the summer answering.

Vegas as anti-dynasty

The Golden Knights have constructed something philosophically opposite to Colorado's approach. Where the Avalanche drafted and developed a core, Vegas has perpetually reinvented itself through trades, free agency, and an organizational willingness to move on from anyone. They won a Cup in 2023 with a roster that shared perhaps four players with their inaugural 2017-18 team. They could win another this year with a roster that shares perhaps six players with that 2023 champion.

It's not romantic. It's not supposed to be. It's ruthlessly effective.

Our take

Colorado's window isn't closed—MacKinnon under contract through 2031 ensures that—but it's no longer propped wide open. The Avalanche need a goaltender, need wing depth, need Cale Makar to have more help on the blue line. They need, in short, to become a different team while somehow remaining themselves. Vegas figured out that trick years ago. Tonight, they'll likely teach one final lesson about it.