Dave's firm had grown steadily and the products and systems had become more and more complicated. He had been a star representative and had personally serviced and developed all his accounts. In the past year or so, Dave and his sales colleagues have been changing their approach due to the sales growth and increasing product complexity. Customer relationships are now being handled more and more by ________—whose primary duties are order getting, order taking, or sales support—which is typical of firms experiencing this kind of growth.