Not sure if there's a better place for this, but I just read this and thought it was interesting.
Bill Simmons had an article a few weeks ago on theringer about how Nike is pushing for Durant to leave. They paid him a lot of money and his sales are stagnant. There might even be significant financial incentives for him to join a new team as there is always a boost in sales and stature when a story like that happens. The point of his article was that Steph's rise had really made the war between Nike and Under Armour a thing.
The point I just read, which makes some sense, is that Nike is rumored to be against him joining Golden State, because he'd basically just be playing 2nd fiddle to Under Armour's guy (Steph).