I still think Chychrun may be the single biggest upgrade they could realistically make given the flimsiness of their Carlson partners. But he's got definite durability issues and the cost will be significant. LD overall I'd say in playoff circumstances may be the weakest link but I doubt Edmundson or Gavrikov are the solution. They could be defensively but I think you'd want more overall upside to make it worth it.
5v5 scoring is a structural issue that I don't know they can address via trade all that easily. Does Meier or Kane really change the look of them 5v5? Kane would be interesting. Toews even would be interesting from an IQ standpoint, ignoring center logjam concerns. But I don't know that there's a final piece available. Their style is what it is. Whoever they add will more likely conform to it than singularly control the pace of play. It's an awfully high bar to find that sort of difference maker. O'Reilly has the two-way sense--again ignoring center logjam concerns--but probably not the pace. Horvat's having a hell of a year but altogether isn't a game-changer. It's a short list of forwards that would bring that level of dynamism to the table.
Maybe they don't need that all that. But there's not an obvious target IMO, particularly if they do need to attach Mantha to make it happen. They mainly just need to invest in what they've got, Mantha in particular, and see how far it takes them. NYI/NYR/DET/FLA could up the ante on them and force them to consider upgrades but if they're in a solid playoff spot I wonder if they'll just let it ride.
