CREATE TABLE table_11964154_11 (high_assists VARCHAR, high_rebounds VARCHAR)

Who had the high assists when the high rebounds were from Nick Collison (15)?
SELECT high_assists FROM table_11964154_11 WHERE high_rebounds = "Nick Collison (15)"
SELECT "high_assists" FROM "table_11964154_11" WHERE "Nick Collison (15)" = "high_rebounds"