Employees taking positions outside the Bargaining Unit. Should an employee accept a managerial, supervisory, or other position not covered by this Agreement, they shall not be entitled to any rights under this Agreement. An employee in the bargaining unit who takes a position outside the bargaining unit shall maintain all accrued bargaining unit seniority, but shall not accrue any additional seniority, as long as the Employee maintains continuous employment with the employer. Such employee may return to the bargaining unit, with the Employer's approval, provided no unit employee is displaced by such transfer. The return employee shall begin accruing seniority on their effective date of return.