CREATE TABLE table_20166 ("No. in series" CLOB, "No. in season" CLOB, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "U.S. viewers  ( million ) " CLOB)

Name who wrote the 11 number in the season
SELECT "Written by" FROM table_20166 WHERE "No. in season" = '11'
SELECT "Written by" FROM "table_20166" WHERE "No. in season" = '11'