If you ask a Colorado Avalanche fan about the biggest weakness of the Avalanche’s roster, there is a 100% chance that the person’s answer will be “the defense”. Fixing that problem is a difficult task, especially in a league where elite-defensemen are much sought-after.
Not every team has a true number one in their lineup.
If you ask NHL experts about the amount of true number one defensemen in the league, you will likely get a lot of different answers. One of those will be that there are not even 30 true number one defensemen in the league.