I agree that this defense needs to be re-made...but Kronwall-Zids? That's not a top pair on a contending team. Old and bad defensively. They would be eaten alive on the forecheck. As much as I like Zids since he's been here he would be exposed big time going against #1 lines. I don't think you can just add Dion and shuffle everyone around. Dramatic changes need to be made.
I dont think that potential pairing is a guaranteed problem at all. It would be our fastest executing pair by miles. It would be the first time in eons (for both) where they could move the puck at their highest level because their partner would actually be able to respond effectively.
I also disagree that that pairing would get trapped on the forecheck anymore than our top pairing already does. In fact, I'd say that's the biggest issue with our top pairing relative to other teams top pairings. And a big part of that is Ericsson's slow decision making. The guy is solid when he has time to make a play and also knows where he needs to be if he has the time to get there, but he isn't fast enough to execute in terms of skating nor decision-making. What's so bothersome about the top pairing as it is now is that it allows the opposition's forecheck to establish itself despite the fact that we're usually the first to the puck. It's that second pass that usually kills us because we take the extra time to dish the puck and by the time that happens, we're in a battle for the puck.
With Kronwall-Zidlicky, that wouldn't be half the problem. Where we would have the forechecking problem, however, is that a Kronwall-Zidlicky pairing would play further up the ice. And that pairing would probably struggle themselves to regain possession after the forecheck is established through early zone entry. But heres the thing: we have that problem with the top pairing already. It just comes about differently.
So why entertain the switch? Because there's likely a net gain in offense there. Not in terms of direct production, but a faster executing top pairing means the puck is moving faster up the ice and/or getting into the hands of your forwards sooner.
Having seen how Zidlicky plays, I probably wouldn't be an advocate for this in a vacuum, but given how poorly theKronwall-Ericsson unit has executed defensively (while offering little boost offensively at even strength), I think it would be just as viable a pairing defensively. And I think it would surprise people in that respect in the same way Kronwall-Smith surprised a lot of people last year in the playoffs.
Sadly, this long-winded analysis is probably moot since it seems only injury is going to get Ericsspn off the top unit. It certainly isn't going to be relentless defensive gaffs.