One of the Nets needs is a back-up SF. We're thin at that position, and in the very near future we may need someone at that spot.
Most of the time we see trade postings for the usual suspects Rudy Gay, and the like. And I know we have a Euro-stashes waiting in the wings being seasoned.
We've had very recent success with "problematic" players in Blatche, and although White's issues start with OCD and mental illness, I believe the Nets have the resources the Rockets do not, to aid White and get him back to being an NBA prospect. The Rockets appear to be in over the heads in their treatment plans for White, and he right now especially seems opposed to accepting any of their offers. If he's released or cut, I don't see the harm in investing time and resources to rehab White and getting the most out of him.