Who had the high assists when the high rebounds were from Nick Collison (15)?
CREATE TABLE table_11964154_11 (
    high_assists VARCHAR,
    high_rebounds VARCHAR
)
SELECT high_assists FROM table_11964154_11 WHERE high_rebounds = "Nick Collison (15)"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Who had the high assists when the high rebounds were from Nick Collison (15)? ### Input: CREATE TABLE table_11964154_11 (
    high_assists VARCHAR,
    high_rebounds VARCHAR
) ### Response: SELECT high_assists FROM table_11964154_11 WHERE high_rebounds = "Nick Collison (15)"