The next day in Boston the Celts played their poorest first half of the season and trailed by as many as 17 points early in the third period. Later in the quarter Coach Tommy Heinsohn switched Havlicek from forward to guard and Boston's tempo and its patern play improved. Four times in the closing four minutes the Celtics narrowed New York's lead to one point. They never caught the Knicks, as Frazier scored nine points in the same amount of time, but his heroics were not quite enough to hold off Boston. With 17 seconds left to play, Cowens' hooking layup cut New York's lead to 94 93. This time in their attempt to regain possession of the ball the Celts fouled Meminger. The little sub converted both of his attempts. And that was just the pair of tickets New York needed.