Nora's Nicest Knick Knacks has sold a variety of products to hundreds of small retailers. Over time, she has added distributers who have a talent for finding more retailers for Nora. Now, over half of her sales go through just two of these distributers. Rather than making periodic orders as stock gets low, these distributers make only a few large purchases each year. How can these aspects of her buyer relationships affect how much of the value she creates that she gets to capture?