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Senior Leaders

Mark Hansen


Mark Hansen, Ph.D.

Superintendent of Schools


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Dr. Mark Hansen has served as Superintendent for the award-winning School District of Elmbrook since 2012. Mark has worked diligently towards his passion of creating systems and leaders that embrace the motto, “Every Student, Every Time, All the Time.” He enjoys watching teaching and learning occur in the classrooms each day and loves witnessing ‘lightbulb’ moments in students when they learn something new or innovatively master a difficult task.

In 2006, Dr. Hansen was named Wisconsin High School Principal of the Year by the Association of Wisconsin School Administrators and was one of three finalists for National Principal of the Year by the National Association of Secondary School Principals. In 2018, Dr. Hansen completed his national superintendent certification through AASA. In 2021, he received the 2021 Advocate of the Year Award from the Waukesha County Business Alliance for demonstrating incredible dedication to making Waukesha County a vibrant community. Dr. Hansen was also named the 2024 Wisconsin Superintendent of the Year by WASDA.

Mark and his wife have 2 boys together and his greatest joy is spending time with his family. He also enjoys making time for faith, fitness, and fun!


Kristin Sobocinski

Kristin Sobocinski

Assistant Superintendent for Business Services


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Kristin Sobocinski began as Assistant Superintendent for Business Services for Elmbrook Schools in July 2016. She directs a talented group of individuals that value the work they do and take pride in serving the Elmbrook schools. Kristin is responsible for a district budget of over $100 million dollars, and enjoys the diversity that each work day brings with it.

Kristin earned her Master’s Degree in Business Administration from University of Missouri- St. Louis in 2000 and a Business Manager Certification from UW-Whitewater in 2004. Kristin received her Bachelor’s Degree in Economics (1995) from the University of Wisconsin.

Prior to Elmbrook, Kristin served as the Director of Business Services for Grafton, Brown Deer, and Greenfield School Districts, giving her a collective 21 years of experience. She has also served as a Marketing Manager for several private businesses around the country.

Kristin has three very active children that occupy a lot of her spare time. When she is able, she enjoys exercise, going for runs, and a good book.


Chris Thompson

Chris Thompson

Chief Strategy Officer


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Chris Thompson has served as the Chief Strategy Officer for the Elmbrook Schools since 2005. He leads a team of talented staff in the areas of Technology, Transportation, Library, Student Information and Communications, whose work spans from busing 7,800 students to and from school, to facility and enrollment planning. Chris also guides the development of the District’s Strategy which is communicated through an annual Strategy Map.

Chris earned his Master’s Degree in Distance Education from the University of Maryland, University College in 2005. Chris received his Bachelor’s Degree from Georgetown University. He has served as an adjunct professor at local universities, specializing in operations management and strategic planning.

Chris and his wife have four children who add interest, excitement and energy to each and every day. With any spare time, Chris enjoys running and supporting his Hoyas.


Tanya Fredrich

Tanya Fredrich, Ph.D.

Assistant Superintendent for Teaching & Learning


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Dr. Tanya Fredrich has served as Elmbrook’s Assistant Superintendent since 2020. She leads a dedicated staff that strives to provide a high-quality education for all students and works tirelessly to advance data literacy, science of reading and develop long-range plans for systemic change.

Dr. Fredrich earned her doctorate degree in Leadership, Learning, and Service from Cardinal Stritch University in 2015. Her dissertation was on RTI Implementation in a Middle School Setting. Tanya received her Bachelor’s Degree in Communicative Disorders from the University of Wisconsin - Madison in 1999 and her Licensure in Learning Disabilities (1997) and Masters in Education (2001) from the University of Wisconsin - Whitewater.

Prior to her role as Assistant Superintendent, Tanya served in leadership positions for Elmbrook beginning in 2007 and completed the AASA Aspiring Superintendents Cohort in 2019.  Her work has been recognized with the reception of Wisconsin Council of Administrators of Student Services Director of the Year Award (2013), Elmbrook’s Excellence in Leadership Award (2016) and Excellence in Teamwork (2021).



Pam Casey
Pam Casey

Director of Human Resources

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Mitzi Cass

Director of Finance

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Rick Domach

Director of Facilities

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Amie Farley

Director of College, Career, & Life Readiness

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Emily Grieber
Emily Greiber

Director of Continuous Improvement & Elementary Education

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Bob Hall
Robert Hall, Ph.D.

Executive Director of LAUNCH

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Caitlin Harrison
Caitlin Harrison

Director of Food Service

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lisa rettler
Lisa Rettler

Director of Secondary Teaching & Learning

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Dan Scott
Dan Scott

Director of Technology

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liz stegemann
Liz Stegemann

Director of Special Education & Student Services
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