CREATE TABLE table_73414 ("Season no." FLOAT, "Series no." FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production code" FLOAT, "U.S. Viewers  ( millions ) " TEXT)

How many writers write the episode whose director is Jonathan Herron?
SELECT COUNT("Written by") FROM table_73414 WHERE "Directed by" = 'Jonathan Herron'
SELECT COUNT("Written by") FROM "table_73414" WHERE "Directed by" = 'Jonathan Herron'