District Administration

Phone: 320-352-2258 Ext. 4001


Degrees and Certifications:

Don Peschel, Superintendent

I’m excited to return to the Sauk Centre School District after 4 years in Brandon-Evansville.  I look forward to serving the staff, students, families and the Sauk Centre community as your superintendent.  I am starting my 33rd year in public education.  Much of that time, 27 years, was spent in this wonderful district/community as a teacher, coach, and administrator.

 I look forward to continuing the tradition of providing a quality education to all of our students and families.  We have an outstanding staff, board, and leadership team that will continue to work towards challenging our students with the goal of achieving excellence.  I will be very active in reconnecting with the staff and community over the next year.  Most importantly for me is to meet and build relationships with our students.  They are our greatest resource.

 Finally, I’m honored to be in this position and so grateful for the opportunity to return home to the district and community that has given so much to me and my family through the years. 

 Have a great 2022-23 school year and Go Streeters!

Phone: 320-352-2258 Ext. 1001


Degrees and Certifications:

Amy Millard, Elementary Principal

It is a blessing to serve as Elementary Principal at Sauk Centre Elementary School. At Sauk Centre Elementary we pride ourselves on being respectful, responsible, and safe. Sauk Centre is a great community to raise a family in, and I am thankful to be a part of a supportive and welcoming community. The students and staff at Sauk Centre Elementary bring energy, smiles, and joy with them each and every day. I continually feel blessed to work at a job I love…elementary principal – best gig around! J

Education is where my heart has always belonged and I knew from a young age I wanted to pursue a career in education. Before becoming a principal, I spent time teaching 4th, 5th, and 6th grade at Morris Area Elementary School. In June of 2012, I began pursing my Masters and Administrative Degree from St. Cloud State University. I completed my course work in June of 2014 and was hired at Sauk Centre Public Schools in July.


BA – K-6 Elementary Education (University of MN, Morris – 2003)
MA – Educational Leadership and Administration (St. Cloud State University – 2013)
K-12 Administrative Certificate – St. Cloud State University – 2014)

Phone: 320-352-2258


Degrees and Certifications:

Sheila Flatau, Secondary Principal

Welcome! I am proud to serve the staff, students, and families of Sauk Centre Secondary School. I began my teaching career in this district as a Social Studies teacher in 1997. I had the privilege to teach 10th -12th grade students in various courses for ten years. After that, I served as both a K-12 principal and PreK-6 principal. In 2014, I had the honor to return to the district as the Secondary Principal. I enjoy working with our staff to provide a learning environment where students can see their potential to succeed and lead.

Additionally, at Sauk Centre Secondary School we envision a school . . .

• Where all students are engaged and instilled with a passion for life-long learning.
• Where the climate is respectful and fosters a sense of responsibility in our global community.
• Where students acquire basic knowledge as well as the life skills of problem-solving, communication, and collaboration through curricular and technological opportunities.  


BA – Social Science Secondary Education (University of MN, Morris – 1996)
MA – Education (Saint Mary’s University of MN – 2005)
K-12 Administrative Certificate (Saint Mary’s University of MN – 2007)

Phone: 320-352-2258 ext 3247


Degrees and Certifications:

Lucas Kosters, Secondary Assistant Principal

Welcome to Sauk Centre Secondary School! It is an honor for me to be the assistant principal for students in grades 5-12 in the Sauk Centre School District. My goal is to have a genuine, positive relationship with all students to ensure academic success in the classroom.

Before coming to Sauk Centre, I was a middle and high school Social Studies teacher in the Alexandria School District for 17 years. During the 2017-18 school year, I was the Dean of Students at Alexandria Area High School. I have also coached multiple sports such as basketball, baseball, golf, and football. These experiences have taught me the importance of quality school leadership and have shaped me into the leader I am today.

I am grateful for the opportunity to work with an amazing staff and terrific students every day at Sauk Centre Secondary School.  Go Streeters!

BA - Social and Behavioral Sciences (Education) - University of Mary 2000
MA - Education - St. Mary’s University of MN 2005
K-12 Administrative Certificate - St. Cloud State University 2016


Phone: 320 352-2258 ext. 4005


Degrees and Certifications:

Brent Lieser, Community Ed Director

Welcome!  I am humbled and honored to be part of the Streeter team and help serve the Sauk Centre School Community. Even though I am relatively new to the district, I am familiar with the Sauk Centre area. 

I was born and raised on a family farm near Browerville. During my elementary years, I attended Christ The King Catholic School and graduated from Browerville High School in 2000. My parents are from St. Martin and Lake Henry areas. Growing up, our family made quite a few trips through the Sauk area. 

I began my educational career in Royalton as a high school social studies teacher. I transitioned to becoming Activities Director in 2010 and Community Education in 2015. During my time as A.D. I had the privilege of working closely with Rick Fischer and Scott Bergman as members of MSHSL Region 5A and District 19.  

The community of Sauk Centre has always caught my eye and has been an attractive place where many people in Central MN aspire to move and settle down to call home. I look forward to meeting as many of you as possible and learning about the rich history, culture, and Sauk Centre values. I am excited to see where we can take this school community and we want each of you to become a stakeholder in your school district. My wife, Tera, along with our sons, Krew and Kroy, reside here in town and we are proud to call Sauk Centre, our home. 

If you have any ideas for a community ed class, access to resources, or want to become involved, please feel free to contact me at brent.lieser@isd743.org or 320-352-2258 ext. 4005. Or Angie Christians at angie.christians@isd485.org or 320-352-2258 ext. 4006. 

I am excited to be part of your district and a member of your community! 

Go Mainstreeters! 

BS – Social Studies Education & Minor in Business - St. Cloud State University (2006)
Community Education Certification – St. Cloud State University (2017)  
MA - Educational Administration - St. Cloud State University (2018)
K-12 Administrative Licensure - St. Cloud State University (2021)
Superintendent Licensure - St. Cloud State University (2021)