CREATE TABLE table_72543 ("Series #" FLOAT, "Season #" FLOAT, "Title" TEXT, "Story by" TEXT, "Teleplay by" TEXT, "Directed by" TEXT, "Original air date" TEXT)

Who is the teleplay by when the director is Rob Bailey?
SELECT "Teleplay by" FROM table_72543 WHERE "Directed by" = 'Rob Bailey'
SELECT "Teleplay by" FROM "table_72543" WHERE "Directed by" = 'Rob Bailey'