From what I heard, Lupaschuk hasn't improved all that much.
From about EVERY article on him since a few months, and about EVERY report from this year's training camp, his D is much improved.
I don't know where you read he didn't improve, when EVERYONE in the organization said the contrary...
Beech has been complemented for his ethic and hard work.
But he has had trouble finding the net thus far.
Sivek on the other hand is pretty much a no-show.
Nothing awful, but nothing good either.
It is a dissapointment, because he had a spot wide open and will probably start in WB except if he can suddenly find his game.