Obviously karlsson is another stratosphere. But any defenseman that's capable of playing first pair has excellent value. Even if he's not going to play first pair on the team he's traded to having that quality of a defenseman anchoring your second pairing is huge. There's no way to prove either way but nobody can convince me green didn't have real value from the end of last season until the start of this season. Holland simply wasn't ready to sell yet. Imo,of course.