This makes little sense. He slid to 4 in a weak draft. I don't think he could have "easily gone higher" when every team in front of Seattle had him lower than where they picked. A lot of Scouts were unimpressed with his compete level and tendency to beat up on weaker teams and phoning it in against top teams.
I'm not paying extra for his "4th overall NHL pick" pedigree when he also seems to have baggage that comes with him. If the price is Rehkopf+, I think you can improve the team in other ways, addressing real needs (wright would improve but doesn't fill a need), for less. I'm not touching the kid at the price until I see him play amazing at the WJC, until he does that I don't care that he played a whopping 8 NHL games and 5 AHL games all season.
You can probably upgrade on Valade to Morrison, get a similar impact OHLer, and still have just enough assets to get a strong 3rd liner with attributes the rest of the lineup lacks.