How many employees working in the Engineering Department in 2007 would have their credit cards expired in the same year?
year(StartDate) 2007; year of credit card expiration refers to ExpYear; ExpYear = 2007;
SELECT COUNT(T1.BusinessEntityID) FROM EmployeeDepartmentHistory AS T1 INNER JOIN Department AS T2 ON T1.DepartmentID = T2.DepartmentID INNER JOIN PersonCreditCard AS T3 ON T1.BusinessEntityID = T3.BusinessEntityID INNER JOIN CreditCard AS T4 ON T3.CreditCardID = T4.CreditCardID WHERE T4.ExpYear = 2007 AND T2.Name = 'Engineering'