Not going to lie, that is a core I would build around...
Keep both Goaltenders
Dump Nash for an actual goal scorer, not his finesse "I'm a power forward" ********. Drop all the dead weight in Boyle, Pyatt, Pouliot, etc. Trade Girardi and Callahan at the deadline for some of these assets. Pull up ONE to THREE players from the farm in Miller, McIlrath, possible Kristo. Evaluate the currently employed defensive roster and see who fits, and who does not (as much as I hate MDZ, it's possible he can work, where as guys like Staal need to go... That point blank pass he missed yesterday was just garbage. That could have and should have been an early 3rd period go ahead goal)
Acquire some working pieces for a system AV wants to implement, and then start up again.
In all honesty, it's not a MASSIVE rebuild. Just a re-tooling