CREATE TABLE table_13738 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT)

Who directed the episode that was greater than 74 in the series, and had 'Life Class' as the title?
SELECT "Directed by" FROM table_13738 WHERE "No. in series" > '74' AND "Title" = 'life class'
SELECT "Directed by" FROM "table_13738" WHERE "No. in series" > '74' AND "Title" = 'life class'