It is always easier, in this midden heap of an Eastern Conference, to end up in the middle than at the bottom. You have to be fantastically terrible to be near the bottom.
The Nets will likely re-sign Thaddeus Young and Brook Lopez, and they will still have Deron Williams and Joe Johnson. Plus, they had a decent draft night getting Steve Blake and RHJ to add to Jack and Bogdanovic on the bench. They've also got Teletovic and a couple other OK bench pieces.
History tells us that with that mix of players, the Nets will likely end up in the 30-40 win range.
Given all that, other teams should and probably do regard the Brooklyn 2016 pick as likely to end up in the 12-20 range. Less value than the Dallas pick, which will probably be a late lottery pick.
The 2018 Brooklyn pick is probably a much stronger asset, but then again, the Nets will have cap space by then.