Tank but it could also be a rebuild on the fly (see below in bold).
Here's the list of moves that need to happen in order :
-Molson hires a Boivin type to manage commercial/marketing aspect of the team, and a Bobby Smith type to manage hockey operations with the latter being way more important although the former is important as well. Molson can remain president but only to sit on the board of governors to look princely. Actual real decision making and leadership needs to come from someone else.
-New president should fire Bergevin immediately, hire Julien Brisebois. Let Brisebois decide if he keeps Julien and his assistants. The new coach, if there's one, or even if it's still Julien gets to pick his own assistants.
-Kick Niemi to the curb. Call up Lindgren, start Lindgren in half the games. Rest Price a lot, no point in him playing, plenty to gain by giving experience to Lindgren.
-Trade Plekanec for whatever you can get, eat cap if it helps.
-Trade Wax Statueretty for prospects/picks, I'd be ecstatic with a Samuel Girard + 1st type return but I doubt it.
-If the new GM can manage to rid us of Alzner that would be great but I doubt it
-Trade/waive immediately guys like Schlemko, Morrow, Froese, Benn.
-Give lots of ice time to guys like Scherbak, De La Rose, Mete, Juulsen, Scherbak, Jerabek.
-Hopefully get lucky at the draft lottery (Dahlin - the dream), and you could possibly do a quick rebuild on the fly with a good free agent signing or two (Tavares), a good trade or two (Schenn type trade). But be adaptable and if the big moves don't/can't/won't happen, we need to look at a more in depth rebuild. Trade Price, Weber, Petry, etc. Accept to retain salary, accept cap dumps for picks/prospects, etc.