This article reports on a study of teachers at one reforming high school. Though it is not their task to debate No Child Left Behind (NCLB), the authors locate their investigation inside the current policy context to which NCLB is attached. Specifically, they present their analysis through the organizational behavior lens of threat rigidity to discuss the ways that current federal and state policy contexts influence schools and how those affected schools in turn adopt corresponding reforms that influence teachers' work. The analysis demonstrates that on both levels, such influence occurs in similar ways: by centralizing and restricting the flow of information, by constricting control, by emphasizing routinized and simplified instructional/assessment practices, and by applying strong pressure for school personnel to conform. (Contains 1 table, 1 figure and 11 notes.)