I dunno. If any of Rielly, Muzz, or Brodie go down I think we're really thin
Not really any thinner than if a top 4 defenseman on another contender goes down. Muzzin went down last year and both Dermott and Marincin were excellent.
Nobody on the market is going to upgrade our bottom pairing, so we are mostly looking at depth defensemen and we likely add one of those. Either way, it is not a 'need' that was prioritized over
Also, if Campbell goes down, Hutch is our starter. With Nylander out, Barabanov had to enter our lineup. We are not nearly as screwed with one of those three going down as having Hutch be our starter and I trust our current defensive depth (Sandin, Marincin, Liljegren, Rosen) more than our forwards (Robertson, Anderson, Petan, Barabanov, Brooks, Malgin).