If we trade Dugo or Duvall, we still have 4 OF'ers. An injury would force us to play Ref, everyday.
You do have to plan for these things, but right now, we have mega injuries to our staff, especially the rotation. That is known and needs to be fixed.
I'm not for handing Dugo or Duvall away. I'd want to see the deal, before I'd say, let's do it out of a positional surplus.
Other teams need OF help way more than we do.
Other teams are willing to trade pitching.
A third team may need to be involved to add prospects to the team trading away pitching, as not many contenders are trading away good pitchers.
If we can get a better and longer controlled pitcher by adding an OF'er, I'd consider it. I would not trade Dugo for a rental.