By Thursday morning, Durant dialed Nets general manager Sean Marks, sources said. While Durant had initially resisted swapping Harden for Simmons, Harden had finally forced his hand. Brooklyn’s spiral of losses and Harden’s freelancing behavior created an untenable situation. “Kevin’s the one that pulled the trigger with this,” another source with knowledge of the situation said. “Kevin’s the one that said, ‘Do this deal.’ There was growing concern that this entire season would be lost and then they’d lose James for nothing.”