Rags did about what you'd expect them to do when you aggregate their moves. Slightly better than you'd think with Boston, but Tampa got the better of them in that McDonagh/Miller deal.
McDonagh is outstanding and still only 28.
The assets that the Rags got from Tampa are nothing special really. They have to walk away from that trade with Sergachev and they didn't.
I have not been impressed with the Rags drafting and over all talent evaluation. I understand they have traded away a lot of top picks but they've balanced that out by heavily wooing the college chumps. And Vesey and Hayes are both disappointments. Buchnevich is going to be just ok but pretty good value for a 3rd. But there are also a lot of middle round Brandon Halversons or Keegan Iversons, Aleksi Saarela, Sean Day. These are nobody's. I wouldn't have the utmost faith in the using the assets they got of late properly
And of course the nightmare scenario is if Shesterkin (who I'm not high on) turns out to be mediocre or bad and there is nobody there to replace Lundqvist. Or if Shattenkirk declines fast post 30. There are a lot of other holes that may open up while they're supposedly shoring up certain areas.
Rebuilds are no sure things. For every perfectly done Blackhawks rebuild there are tons of stop and start Islander, Oilers, Panthers, Carolina. Rebuilds that have been marred by bad luck, injuries, poor drafting etc.