At this point, we need Scandella because we cannot trust Mikkola or Perunovich yet to even play the bottom pairing. After losing multiple defensemen in the playoffs, I don't think Army is going to be very keen on trading our LHD, the same position he has attempted to bolster by signing Leddy.
I don’t buy this at all. Scandella is still a useful 3rd pairing caliber d-man but he’s not “needed”.
We have 8 NHL caliber d-men, 9 counting Rosen. I do think the Blues could use another guy or two slotted into the #9-11 d-man range but if they could trade Scandella (likely with a mid pick or prospect as a sweetener), they could then sign someone for a third of the cost (or less) who would be at about the same caliber of player Scandella currently is. They could then use that cap space for something else, either now or at the trade deadline.
I view free agency as a game of musical chairs. At the beginning, there seems to be plenty of chairs (roster spots league-wide), but as the music begins to stop, most of the chairs are then taken. Every summer, that then leaves numerous viable NHL players still unsigned and they start to see that there’s only a few chairs left. So they end up signing for less than they’ve been pursuing previously to get a chair and stay in the league. Army is an expert at buying low when guys wait too long to sign and price themselves out of the market until they panic and sign for near league minimum.
So in short, I am of the belief that we could absolutely get rid of Scandella and be just fine. In fact, we’d almost certainly be better off IMO.