But we already have plenty of guys who can play defense..it's not like he's filling any void. But you put him on a line with Kamensky and Richer and that basically hinders the offense those two players can generate.
I think the third line should be:
Berglund-McKenzie(Kamensky)-Richer
McKenzie isn't any better at offense but he hits and creates space for Berglund and Richer.