[Weitzman] Harden had seemed off all season and was growing frustrated with the situation in Brooklyn. He wanted everything catered to him the way it was in Houston, especially the offense. Kevin Durant and head coach Nash disagreed. Both wanted the Nets’ offense to feature ball and player movement.

Full Quote

Around the same time, the Nets started losing games. Harden had seemed off all season — both during games and with his comments after them — and was growing frustrated with the situation in Brooklyn. He wanted everything catered to him the way it was in Houston, especially the offense. Kevin Durant and head coach Steve Nash disagreed. Both wanted the Nets’ offense to feature ball and player movement, and Harden, upon being rebuffed, ducked into his shell at times, according to sources, and even criticized teammates and coaches to NBA insiders sitting courtside at games.

"With James, if you’re not 100 percent on his side, you’re his enemy," a former Rockets staffer said.

Excerpt from this article that details everything that went down leading up to yesterday’s trade.

https://www.foxsports.com/stories/nba/james-harden-ben-simmons-trade-inside-story-behind-the-deal