How are they pushing the needle? NYI is worse this year than last. The two years that Hall has been in NJ, they have averaged about the same amount of points as before he arrived (way better one year, way worse another). Likewise the Oiler's had 70 points with Hall and no Larson, 103 points with Larson and no Hall, and now are on pace for 74 with Larson and no Hall. You need a complete team in the NHL, and guys like McDavid and Hall aren't going to have team success if their defense and goalies can't do their jobs. That doesn't change just because the impact of the forwards are easier to measure.
You're missing the point, and you're wrong about the impact these players are making but that's a different discussion that I have no interest in having.
Nobody said you can't trade these players. Nobody said it's okay to have a team that isn't built properly. What is being said is that the right trades need to be made and that it's not okay at all to trade your dollars for quarters. Good players are way too hard to get for that.
For your position to make sense you have to present an argument that the problems in team building were actually fixed. That's going to be hard with Taylor Hall and it's going to be extremely hard with Jordan Eberle and Griffin Reinhart.
It's also not really that hard to measure defensive impact just FYI. Larsson is league average. A fine player that I'm happy to have.
EDIT: I just realized that this is the PGT and not the Fire Chia thread. My bad and I'll stop derailing.