1) Even if your star player is out, that is no excuse to give up on the season.
Not every team can be like the Bulls and have the perseverance to stay in the hunt while their Derrick Rose is out, nor does every team have the depth of a Mavericks and have the best #2 and #3 options to fill in for their top dog.
Especially true of the Wiz and their engine, John Wall. Although in the NBA, teams will tank the season in the fool-hardy attempt to improve their draft chances, no such thing exists in fantasy basketball. Plus, in head-to-head matchups, any-freaking-thing can happen, so get your Randy Wittman on and keep looking to make your team better even though your main weapon might be out of commission.
Fantasy application: If your team is missing a star contributor, maybe your goal isn't to be in 1st – 3rd place, but you do have a chance to win your weekly battle and by stringing a couple of those along, you could find your way into the playoffs.