Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_40 ( pick__number INTEGER, round VARCHAR, college VARCHAR )

### Question ###
What is the pick number average for the player who was drafted before round 7, and went to college at Tennessee?

### Accurate SQL ###

SELECT AVG(pick__number) FROM table_name_40 WHERE round < 7 AND college = "tennessee"