(Probably been submitted before... but what the heck!)
Draft Lottery
Teams not making the playoffs is eligable for the draft lottery, much like the NBA Lottery.
Make the two first spots decided by lottery, with the last teams(worst records) having the best chance and the teams just losing out on the playoffs all have a slim chance of grabbing a top pick. Procentage like: 35,20,15,10,8,6,4,2 or even higher for the worst teams and lower for the better once. Third up to last pick following the ordinary draftorder for the remaining teams.
So a last placed team can end up first, second or at worst third.
Pros: Tankning does not guarantee a top draftpick! What more do you need? End of discussion ;-)
Also more teams will actually use their draftpoints, since there IS(not Inside Scoring dufus!) a chance of getting a top pick! Lottery is made AFTER you need to submit your draft order.
To prevent BOT-teams to draft early, they could automatically select last in complete draft OR atleast last among the top 8 picks if they qualify for the lottery. They should suck at drafting since they suck at managing so make them pick the worst players in the draft, atleast in the first round. A single manager team in a division full of BOTs should not automatically get the three best players in the draft, so some kind of randomness should be required in the later picks in my opinion.