Duchene and Landeskog (and now Tanguay) have to be playing with undisclosed injures.
Avs used to have great depth and puck skillz with Parenteau, Stastny, and Downie. The problem though is two of the three are not long term solutions and Stastny is more of a benefit to the club and the most expendable.
Stastny of course is not the answer since Avs sucked when he was having top 6 minutes at a consistent basis. That cap space was for depth, which has been all injured this year. Winchester who makes our 4th line so much better played a couple of preseason games and then has been shutdown for the rest of the year due to constant concussion symptoms. He is a good puck possession player for the bottom 2 lines. McGinn is out for the season with back surgery, brings some great secondary scoring. Rendulic who looked great as a temporary replacement on the top line broke his Tibia (good grinder with some skill).
So the reason why Avs lost in the playoffs last season, which is depth, is all injured. But it is still an area of weakness Avs need to improve on, especially in the puck skills and passing department. Stoll would be the most perfect player.
Yes Avs overpayed with picks for players, but they also made moves to increase cap space for potential free agents in off season with perhaps even trades in mind. Having this cap space is probably made for the idea of re-signing players like EJ and MacKinnon, but to also improve the defensive core and winger depth. So this season might be a lost caused, except for a great draft class, and also a learning curve, but we will see how Sakic and Roy conduct business at the trade deadline/June.
I've only watched their games against the Wild so it may not be the best snap shot, but they seem to spend an awful lot of time chasing the puck in their own zone. If their defense was better they would spend more time playing offence, and probably score more goals.
FYI Avs are missing their two best defensemen due to injures. It's not an excuse, but it greatly impacts Avs chances of winning and losing since Johnson and Barrie are the two best puck rushing Dmen.