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, according to sources, wanted the Nets’ offense to feature ball and player movement. Harden, upon being rebuffed, ducked into his shell, at times criticizing teammates and coaches to NBA insiders sitting courtside at games.