I would, if I could ... because I don't see the Habs as anywhere near a Cup contender and want a MAJOR re-set (since "rebuild" is apparently a dirty word around the Bell Centre)
BUT, a full tank would (for example) mean playing Lindgren, sitting Weber, Petry, Gallagher, Drouin, Domi, Suzuki and Tartar ... the NHL might then take away the Habs first rounder as a penalty for obviously tanking ... more subtly, I suppose they could do things like:
"force feed" KK as the 2C ... but getting eaten up by Crosby or Malkin may regress his development
sit Domi for health reasons, or move him to LW (which seemed to make Max sulk when last done) to make room for Poehling as 3C ... but that could screw the relationship going forward)
play Peca, Barber and Weise as the 4th line
manage Weber and Petry's minutes ("because of" the layoff followed by inadequate training camp) and play Folin and Alzner as the 3rd pairing 18 minutes per game
But even that would be a fairly obvious tank (if not perhaps punishable by the NHL) and annoy the players (if they are going to play they want to try to win)
Sadly ... I think they have to count on the Pens just being better