How has your job changed since you were hired?
The nature of work is continuously changing, so it shouldn't be shocking if a former employee claims that his position changed while he was employed by your business. It's wise to ask this of departing staff to head off too-optimistic expectations. To avoid dissatisfied new hires, their job description should be updated as soon as possible if it has in fact changed. Changes could involve, among other things, new tasks, responsibilities, skills, and competencies.
The shifting demands of the department or the business frequently result in job role changes. Current employees may become less enthused about their work or dissatisfied with their pay as a result of these changes, which may demand different skills or duties than the role initially demanded.
You can use the information you gain from hearing how a role evolved to ensure that your next employee is qualified to handle these new requirements and that pay is adjusted as necessary by including it in job descriptions. In this manner, you may be certain that you are looking for the appropriate qualifications to fill the open position.