I don't see the reasoning of this deal specifically for GS - I think they'd be more likely to pursue a backup big or combo guard rather than a minor upgrade at the same position - I do think pegging them as a trade deadline "buyer" makes sense.
I think the race for the 4th seed in the West could push GS, LAC and HOU into buy mode. I could see GS or HOU liking Hump, Bass, Lee or Crawford.
I think Green, Fav, and Hump might fit on LAC.
The problem is, I just don't see what these teams can send back to us.