There is one thing that people fail to take into account-- these guys play in NYC.
Teams come out flat often because they're tight. As they mentally loosen up, the game starts to come to them.
When you have to constantly fend off the slings and arrows of a parasitic media core, plus carry the wait of a long-frustrated fan base, playing loose becomes REALLY difficult.
The players that thrived on the hardwood in recent years in NYC were TOUGH, and came from tough backgrounds. Starks, Oak, Ewing... etc.
D'antoni will have his handsful getting the most out of this group in this environment.