Tank, in so much as the roster you ice and all the decisions around lines, TOI, tactics, roles etc. should be geared towards next year and the future more generally rather than trying to win now. Play the kids, experiment, try different things, see what works and what doesn't, let the guys play with some freedom, allow room for mistakes and learning.
By all the means the players themselves should go hard, and if they win a few games, well and good. You never want to encourage bad habits, and you need to keep the culture strong. But the focus on the part of the coaches and management needs to be looking further ahead.
I have zero interest in the playoffs as regards the Bruins. Zero. If by some miracle they actually made it, congrats to them and of course I'd watch and cheer them on, but I see nothing to be gained by them being there. This franchise desperately needs an injection of quality young talent and I'd much rather they're either picking in the draft as high as possible, or they're turning their position to advantage by some other means. That's much more important than a little postseason sugar rush.