Obviously, you can't do an accurate Mock Draft (oxymoron?) until after the Draft Lottery, but I thought I'd take a look at the teams most likely to pick ahead of the Pistons and see what their needs are:

NETS: With Robin Lopez, they are unlikely to take DeMarcus Cousins.  I'm not sure what they think about Devin Harris.  If they could see him moving to SG, then John Wall could be a possibility.  Or they could take Evan Turner and have a pair of versatile combo guards.  Derrick Favors is also a strong possibility and could make for a dynamic front court partner for Lopez.

TIMBERWOLVES: They drafted two PGs last year and have two PFs in Al Jefferson and Kevin Love.  Evan Turner would be a great fit.  I don't really see Cousins as a good fit alongside Jefferson.

WARRIORS: They've always struck me as a wing heavy team, so I see them going with a big man.  They have Biedrins signed to a sensible long term contract so that might nudge them more towards Favors over Cousins.  But, in general, I see them going big.

WIZARDS: They've blown things up, but what do they think of their young players.  Is JaVale McGee their C of the future?  What about Blatche?

Currently, those are the teams ahead of the Pistons.  But, the 76ers are in the mix as well.  Thoughts?  Concerns?