This document discusses how focusing on "tail spend management" can impact a firm's bottom line. It defines tail spend as the 20% of procurement spending that is spread out among the 80% of a company's total supply base. While most firms focus procurement efforts on the 20% of suppliers that account for 80% of spending, there are significant opportunities to reduce costs by better managing the long tail of smaller purchases. The document outlines characteristics of tail spend and why it has traditionally been challenging for companies to manage. It argues that analyzing tail spend can help reduce maverick spending, consolidate fragmented purchases, and achieve other savings.