I still love Zibby more but with the way they play, Brassard > Zibanejad and it's not really close. Brassard is much more dynamic all over the ice, and is a much better playmaker. The points are not coming yet but they should
Actually, we don't really need to add a 50-60 pts player. Ideally, we'd have MacArthur back, but mainly we need that the actual 5 guys who need to produce put the puck in the net more. Stone, Hoffman, Ryan, Brassard and Turris are all capable of 60 pts and more and proved it recently. Let's say they all get around ~60 pts, then we're in pretty good shape. Right now they are busy learning team defense under the best NHL coaching staff this team has had in a decade, by far IMO.
Are Duchene and MacKinnon that bad defensively? Because Hoffman, while being an offensive player, doesn't hurt his team much defensively. He could use his speed more to recover the puck but when he does, he's actually good defensively.