If you are interviewing for an account manager or sales related role with USAA, start by inquiring about the size of portfolio you might have to manage. USAA offers different products including banking, retirement and insurance and the portfolio you are expected to manage may depend on your specialties and areas of focus. Disclose to the interviewer the size of your current, or most recent, insurance, banking or retirement portfolio. Assure them that you are able to handle the volume required of you, should you be offered the position.