Another depth D???
Not sure I see a need personally.
This is analytically the best defensive team in the world (NHL) (by a decent margin) and this team already has Edmundson, Burroughs, Englund (barf), Moverare, and Caleb Jones. In addition to Doughty, Anderson, Gavrikov, Clarke, and Spence.
The D core is already so crowded we're likely going to see a very good Moverare scratched consistently when Doughty is healthy.
Would the goal be to solidify the top 4? With Doughty back, we're likely looking at a top 4 of Doughty, Anderson, Gavrikov, and Clarke (or Spence). I'm not really sure that's a top 4 that needs upgrading.