Table schema:
CREATE TABLE table_25604014_6 (no_in_series VARCHAR, directed_by VARCHAR, no_in_season VARCHAR)

Question: What are the number in series of the pieces directed by Win Phelps and which number in season is 11?
SQL: SELECT no_in_series FROM table_25604014_6 WHERE directed_by = "Win Phelps" AND no_in_season = 11