If that happens, here's what's left for Wingers:
I count Okposo, Ennis, Moulson, Carrier, Foligno, Baptiste, Nylander, Fasching, Smith, Zemgus/Reinhart (depending who goes 3C).
There is no depth beyond these in case of injury that is remotely NHL-ready + we have to give someone to Vegas.
If what you are proposing happens we will have to get some winger UFAs it seems. And it better be cap-friendly signing cause we will be very close to the cap unless we can dump someone on Vegas like Moulson.
LW UFA's class that may come relatively cheap and is not nearly 40:
Versteeg, Kunitz, Korpikoski, Upshall, Stalberg
RW UFA's class that may come relatively cheap and is not nearly 40:
Williams, Parenteau, Stafford, Wingels, Pitlick
It's kinda ugly...