Probably going to get flamed for this, but not a huge fan for my Avs.
Rantanen isn't what he was, even going back just a couple years. At one point he was pretty decent defensively, and he's godawful now. He also takes a lot of shifts off, which is frustrating. But he makes up for it with his insane point production and is money in the playoffs. He's got a solid chance of making the HHOF.
Colorado's biggest problem this season is depth. Part of that is injuries, but the bottom line is there are too many guys playing one station too high. That has led to inconsistency. Trading Rantanen was the team's best chance to address that, and I'm not sure they did. Necas is a step down from Rantanen, and Drury is similar to what the Avalanche already have in its bottom six - high-energy, low-offense players. And to my previous point, Drury was Carolina's 4th line center, yet will almost certainly be Colorado's 3C.
Very underwhelming trade for me. Not miserable value by any stretch, and I get that CMac's hands were tied by the reported sudden breakdown in negotiations. But I think the team is worse, both long and short term. I've seen a lot of comments wondering about Colorado's next move(s) and I have no doubt they're coming. But as far as I'm concerned, those are divorced from this trade, considering the Avs didn't gain any significant cap space or premium trade assets (though I can guarantee the 2nd round pick shouldn't go house hunting in Denver...).