What is the average round of a player with an overall of 138?
CREATE TABLE table_name_23 (round INTEGER, overall VARCHAR)
SELECT AVG(round) FROM table_name_23 WHERE overall = "138"
### Context: CREATE TABLE table_name_23 (round INTEGER, overall VARCHAR) ### Question: What is the average round of a player with an overall of 138? ### Answer: SELECT AVG(round) FROM table_name_23 WHERE overall = "138"