There were many in the Hou forum at the trade deadline who didn't even want a Rondo for Parsons trade. While that is pretty ridiculous, it shows just how much they value Parsons. I think Hou would be after non-guaranteed contracts or a trade exception. They may like Green, but not nearly as much as Anthony.
The deal would most likely be broken into two parts:
Trade exception for Asik
BKN pick, one of the NJ picks, and one of our young Assets for Parsons. There is honestly no reason for them to trade Parsons. He is super cheap and is not in the way of them possibly landing Anthony. If they do decide to trade him, it would most likely be for several decent picks.