The system includes a comparison unit that identifies products in an initial assortment of products, a desired assortment of products and the performance metric for each product. The comparison unit compares the initial assortment of products and the desired assortment of products to determine kept products, added product and deleted products. The system includes an interaction unit simulating the interaction of the kept products, the added products and the deleted products based on the performance metric. The system generates simulation results identifying the interactions between the kept products, the added products and the deleted products.