Jarmo has shown himself capable of being creative. No one saw the Gaborik trade coming. So, you could see a similar deal before the deadline. Or you could just see a playoff push rental. Difficult to say.
I'd say you pretty much have hit the nail on the head as far as needs, though I'd be satisfied with a shutdown, second pairing d-man. I'm quite content with Murray and Wiz as the #1 pair going forward. But I don't see how we keep both Johnson and Tyutin. Neither one of them is a "shutdown" guy nor is their offensive contribution great enough. Erixon really should be on this team next year, but, again, he's more of a offensive-minded d-man. I think the Jackets should move one of Tyutin or Johnson and use them to get the forward they need. Spend money in the off-season on a shutdown d-man.
The thing is, I actually like the Nikitin-Savard pairing and I'd be tempted to keep Nikitin in the off-season. But if you do that, add Erixon and an acquisition, Dalton is back healthy...you still have too many d-men. Which means there is still an option to trade another d-man in the right scenario to acquire an asset.
Current NHL contracts are Johnson, Tyutin, Murray, Nikitin, Savard, Prout. In the AHL or elsewhere is Erixon, Goloubef, Weber, Madaisky, McNeill, Larkin, Parlett, St. Denis, and Blomqvist. Unsigned prospects are Reilly and Curcuruto.
There's a definite lack of true shutdown defensemen in the pipeline, assuming that we're using someone in the Jan Hejda mold as the standard. I'm more curious to see not what happens in free agency or at the top of the system, but with the guys in the system. If half those guys aren't going to be re-signed or qualified, I can see someone else's redundant prospect coming in and making a difference. As much as everyone's tired of hearing me mention Winnipeg's washouts, I think of someone like Arturs Kulda, who's a mobile shutdown type with a huge shot and otherwise-limited offensive skills. His KHL contract expires in a few months, and Winnipeg never gave him a chance and likely never will.
Of course, you also raise the other question, which is how much offense is needed from someone to offset their defensive deficiencies. Someone like Phil Housley would outscore every forward on his team but two or three, and someone like Andy Delmore could outscore every forward except five or six.
Overall, I think the Jackets are in a much better position to make the changes they need to make than they were a few years back.
I'm torn on whether to post "you're finally coming around to what I've been saying for years" or "gee, I wonder why".