Basically just boils down to whether or not we A. have the assets and B. want the players bad enough when it comes to Duchene and/or Saad.
Duchene propels Sid's line through the stratosphere along with Jake. Saad would be absolutely lights out with Geno and Sprong, Rust, Hornqvist, etc.
Do I think we need a forward more than a blueliner? Nah, not really. But there's no blueliner available in the Duchene or Saad caliber of player, I don't think any one blueliner fixes our issues, and I think you have to put Sid and/or Geno in the best position to succeed moving forward, that's our best bet. We're not fixing our defensive woes with a move or two. We're going to have to work hard at righting that ship, but there are two very attractive wingers who fit our needs perfectly, and they're likely available for far cheaper than they'd normally be.
I think our best bet, as far as this season goes, is to grab one or both of them if we can swing it and go for broke as far as being an offensive juggernaut goes, while hoping and praying the goalie in net can play at an NHL level and doesn't lose us games.