Avs aren't going to trade Barrie because at some point in the future Jones and Elliott might be top four defenders.
Should Avs be in a position where they have such a wealth of riches on defense that one will be expendable eventually, things will work themselves out.
Exactly. There's still no guarantee that Elliott or Siemens will ever be good enough to play a Top 4 role for us. Barrie is already there IMO.
It would be a mistake to move him now without knowing what we have in Elliott and Siemens. For now we should keep all of them, and if they all do develop the way we hope, then we'll cross that bridge when we get there.