When you add Kovalchuk to the mix, the obvious play is to move a forward.
Jersey's forward situation looks like this right now:
Depth chart based on last year's usage
C
Zajac
Arnott
Rolston
Pelley
LW
Parise
Kovalchuk
Elias
Letourneau
RW
Langenbrunner
Zubrus
Clarkson
Zharkov
They would obviously prefer to move Elias and that will probably be explored first...because the next "obvious' move is to waive Zubrus, and trade Langenbrunner...but that guts their right side. Though Elias can play on the right, and Elias-Clarkson isn't a terrible 1-2 at RW (especially when you consider that Jersey has the best LW 1-2 combo in the NHL now) so it's probably palatable to Lou if he absolutely has to go that way...frankly, I think he goes that way before he touches his blueline, because the blueline is pretty suspect overall and even losing a defender as mediocre as Salvardore really leaves a dent, especially if/when injuries occur