 When marcus camby (15) has the highest amount of rebounds who has the highest amount of assists?
CREATE TABLE table_25890 (
    "Game" real,
    "Date" text,
    "Team" text,
    "Score" text,
    "High points" text,
    "High rebounds" text,
    "High assists" text,
    "Location Attendance" text,
    "Record" text
)
SELECT "High assists" FROM table_25890 WHERE "High rebounds" = 'Marcus Camby (15)'