Consulting firms like Berkeley Research Group, that specialize in the HR side of businesses, often get called upon to analyze and assess businesses, their staffing and their overall practices. Part of the assessment phase can involve staffing numbers and getting an organization to the optimum number of employees. Because you may have to deal with layoffs or single terminations, your interviewer will be looking to hopefully hear that you have some experience with this during your career up to this point. Be sure to speak openly and honestly about your experiences while walking them through important things that are necessary during a termination or a layoff.