I swear to G-d I am so sick of this "third line is supposed to be low-cost suckage" trope. Call it "having three second lines" if you desperately need to have some sort of ordinal designation. Players like Dubinsky make other players better, so put whoever the hell you like on his wing.
We don't have a "bottom 6" in the traditional sense. We never have. We have one defensive/energy/****-stirring line and three two-way lines. Wennberg can be a #2C on the third second line. Whatever. I don't care. Just please, please, PLEASE just ****ing quit it already with this "he's not bottom-6 and we already have two okay centers, so there's no room for him" mishegaas. Our roster construction for the last several YEARS has not followed that pattern and hasn't had to.