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_12 (crew_chief VARCHAR, owner_s_ VARCHAR, driver_s_ VARCHAR)

### Question ###
What crew chief has an owner name Jack Roush and driver Greg Biffle?

### Accurate SQL ###

SELECT crew_chief FROM table_name_12 WHERE owner_s_ = "jack roush" AND driver_s_ = "greg biffle"