CREATE TABLE table_name_49 (overall INT, school_club_team VARCHAR, round VARCHAR)

What is the average overall rank of all players drafted from Duke after round 9?
SELECT AVG(overall) FROM table_name_49 WHERE school_club_team = "duke" AND round > 9
SELECT AVG("overall") FROM "table_name_49" WHERE "duke" = "school_club_team" AND "round" > 9