prefer my contracted parental leave employee to the employee who is on leave. Do I have to let them return to their old job?

prefer my contracted parental leave employee to the employee who is on leave. Do I have to let them return to their old job?

When parental leave ends an employee is entitled to return to the position he/she held before commencing leave. If that position no longer exists, the employee is entitled to return to an available position at an equivalent level or similar nature and pay to the former position.