Public management reforms are important changes desired in a government structure. In the Philippines, bureaucratic reforms are introduced nearly every time there is a change of administration. This article focuses on the last two systemwide reforms--the Integrated Reorganization Plan, implemented in 1971 under Marcos' administration and the Presidential Commission on Government Reorganization of Corazon Aquino in 1986. Janet Weiss' policy theory was adopted in analyzing the development of administrative reforms over the years. It consists of three interrelated policy components, namely: theory of the problem, of desired outcome and of intervention. The theories make for an understanding of how the role of government is envisioned and how they should work.