New York Knicks defeat Boston Celtics, 104-101

NEW YORK — Kendrick Perkins could sense it from the start of the game.

The game plan was in green, blue, and red on the dry erase board as always. It was slightly smudged, the crush of media crowding the room to the point where backs were pressed against the board. But the game plan was there on the board.

It just never made it to the floor. Not even in the first quarter of the Celtics’ 104-101 loss last night to the Knicks.

“We weren’t executing our defense that ...