Two high school principals are finalists to be the next superintendent in the North Fond du Lac School District. Sheboygan Falls High School principal Kevin Krutzik and Appleton East High School principal Matthew Mineau will be interviewed by the school board Monday. Krutzik is a former assistant principal at Fond du Lac High School. Longtime superintendent Aaron Sadoff is stepping down after accepting a job as executive director of the Fond du Lac Area Foundation.