How Important are School Superintendents

A report by the Brown Center on Education Policy released in September 2014 finds that school superintendents are around for only a short time and have very little impact when it comes to improving student performance. 

http://www.brookings.edu/~/media/research/files/reports/2014/09/superintendents%20whitehurst%20chingos/superintendentsbrown%20center9314.pdf