Which employee's job position requires a higher education level, Jose Rodriguez or Sandy Adams?
Jose Rodriguez AND Sandy Adams are the fullname of employee; full name = firstname, lastname; higher education level refers to MAX(educationrequired)
SELECT T1.firstname, T1.lastname FROM employee AS T1  INNER JOIN position AS T2  ON T1.positionID = T2.positionID WHERE (T1.lastname = 'Adams' AND T1.firstname = 'Sandy') OR (T1.lastname = 'Rodriguez' AND T1.firstname = 'Jose') ORDER BY T2.educationrequired DESC LIMIT 1