Last August, a "New York Times" headline proclaimed "Teacher Shortages Spur a Nationwide Hiring Scramble." The article detailed how school districts across the country "have gone from handing out pink slips to scrambling to hire teachers…a result of the layoffs of the recession years combined with an improving economy in which fewer people are training to be teachers." What about in Wisconsin and Metro Milwaukee? Does this state and region face a shortage of teachers and, if so, what are the dimensions of the problem and what can be done about it? In this, the third and final installment in a series on educators in the Milwaukee area, the Public Policy Forum seeks to addresses these questions. This report takes a comprehensive look at the public school teacher workforce, as well as teacher preparation programs throughout the state. The author's analysis explores the most recent federal, state, and institutional data to answer a number of questions, including: (1) How many teachers leave and enter the profession in a given year? (2) Why are teachers leaving the profession? (3) Are there enough students in teacher preparation programs to replace departing teachers? and (4) How can schools and districts increase teacher retention? The educator profession in Wisconsin has been the subject of much discussion and debate in recent years, particularly during the consideration and implementation of Wisconsin Act 10. Consequently, this analysis includes data over multiple years to capture changes in educator workforce numbers since 2009-10 and teacher preparation programs since 2008-09. [For the first report in this series, see ED570112. For the second report in this series, see ED570113.]