I think the biggest concern is still thecreason they lost in the playoffs. This is a soft team along the walls and in front of their net. They don't have the size on the wing to grind out games and hold leads. They lack perseverance, too easily pushed around and too easily defended against.
I assume Clarke, Kaliyev, and Dubois will help them offensively, but none of those guys kill penalties and none of them will be on the ice late in games. They just added to the strength of their team while losing the extra effort-type plays that defined Iafallo and Vilardi's games.
Its a very, very expensive wash.