Government efforts to prevent corruption vary from reformulating laws and regulations to establishing control and oversight mechanisms such as integrated public management systems within central and local governments. However, several technical issues as well as social-political events may critically affect its effectiveness. This article addresses this issue by analyzing the Integrated Management System and Administrative Modernization (SIGMA for its acronym in Spanish) established in Bolivia through a World Bank US$15 million loan. Possible solutions and next steps to improve its effectiveness that can be applied to other countries are suggested. © Copyright 2012 American Political Science Association.