I think Calgary brought in Engelland as a tough deterrent on D, along with Bollig and keeping McGratton. They've been able to not play McGratton much, and sat Engelland last game in large part because I think the fears of our small forwards getting manhandled hasn't materialized to date. There has been some rough stuff, but not much.
Whether that's because of the intimidation/deterrent factor, the teams we've played or the rough stuff is becoming less and less common is not clear. Certainly Calgary hasn't played many/any of the really tough teams yet (OK, St Louis and Nashville) so we'll see once we hit LA and Anaheim.
If Calgary can meet the need to play tough and protect our assets through functional toughness that's the ideal situation, but we may always need a nuclear option, i.e. Carcillo with Chicago and Scott with San Jose. Getting Ferland on the team, plus Bollig playing well, adding Poirier and perhaps Hunter Smith and others (e.g. Wolf) down the road may be enough. If so then we'll be able to seriously look at moving out Smid and Engelland for better and more mobile D in the 5-6 role, and replace them with Wotherspoon, Sieloff or others.. We'll still need strength to clear the front of the net but Kanzig could be that guy down the road. He has improved but still needs to do more.
Overall, we are in a position to move out Wideman if we get something good back in return, and if not keep him for another year to help ease in the kids next year. I think someone like a Kulak could replace what he brings but isn't ready for full-time yet. Wotherspoon is more a solid, no-nonsense D and Sieloff tough as nails defender. Others to be determined.
Our biggest need long-term on D is to find someone to replace Gio in a few years. That potential hole remains and we'll have to see what develops but if we could find someone young with high upside that can potentially grow into that role we'd be a lot better off than where we are now...