Write SQL query to solve given problem: What is the education required for David Whitehead to reach his current position?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T2.educationrequired FROM employee AS T1  INNER JOIN position AS T2  ON T1.positionID = T2.positionID WHERE T1.firstname = 'David' AND T1.lastname = 'Whitehead' AND T1.gender = 'M'