I just don't see a road where we are better without them and if we plan on competing, which judging by the PLD trade, we pretty much have to now. We are a worse team without them and there is no way in hell we replace them soon enough by trading them.
There's two roads right now. One involves keeping them and just clinging to a bit of hope, the other involves trading them and being a bubble team for the foreseeable future.
I think the big kicker is that our division doesn't look to be particularly strong. There are really only two elite teams if that. Dallas manged to turn the corner largely due to a crop of young talent blossoming. We have some good young talent that hopefully will grow into good players that can push the team forward.
I can see a scenario where we get a seeded position and can make some noise over the next few seasons provided we keep Mark and Helle.