Richdad often talked about invest in systems NOT products. He called his system to achieve business success the BI-Triangle. When you evaluate a business opportunity or get frustrated over your existing business endeavors, refer to his BI-Triangle business model. He states a successful business needs to have a strong BI-Triangle with a strong mission, team, and leadership. The management functions of the B-I Triangle’s five internal levels are CASH FLOW, COMMUNICATIONS, SYSTEMS, LEGAL, and PRODUCT. Notice PRODUCT is placed on the smallest portion of the BI-Triangle.