I'm going to use some hyperbole to make a point here but how are you going to know you hit on these draft picks if you tank again next year at the first sign of trouble in favor of next year's draft position.
There's 2 games left which leaves opportunity for any number of players to prove themselves as something useful to this team next year.
Once again people are confusing tanking, which only a team can do, with rooting for a higher pick, which is what fans do. The players are always going to play their hardest because they get paid for performance. So you will know how they turned out by their performance, which is always the case. No player is going to put out bad tape and lose money in future contracts so that the team will have a higher pick, which could actually replace them.