• Superintendent's Leadership Team

Dr. Kregg Cuellar
Dr. Kregg Cuellar  
Deputy Superintendent,  
Instruction & School Communities  


Dr. Cuellar came to PPS in June 2018 from Baltimore Public Schools (the 25th largest school district in the U.S.), where he was community superintendent. He has served as a teacher, administrator and college professor. Dr. Cuellar is deeply experienced and respected for his school and school system transformation work.

Dr. Cuellar started in PPS as Chief of Schools, and in July 2019 was promoted to Deputy Superintendent. In that role, he oversees curriculum and instruction, student support services, and school performance. He earned a Bachelor of Science and a Master of Arts from the University of Houston-Victoria, and a Doctorate of Education from the University of Houston.

Brenda Martinek
Brenda Martinek  
Chief of Student Support Services  


Brenda came to PPS from Vancouver Public Schools, where she was the executive director of special services. Brenda previously served at Reynolds School District as director of student services, as principal of Holy Trinity K-8 Catholic School, and served Portland Public Schools as a program administrator in special education.

Brenda supports school communities and works collaboratively with central office departments in fostering long-lasting, collaborative relationships to continue to support all students. She earned a Bachelor of Science in Psychology from the University of Utah, and a Master of Education from Portland State University. 

Don Wolff
Don Wolff  
Chief Technology Officer  

Don came to PPS from the Hillsboro School District, where he served as Chief Information Officer. He oversees all PPS technology functions, including application maintenance, our data centers, help desk and hardware support, voice and data communication, and computer systems operations.

Don earned a Bachelor of Science in Elementary Education and Teacher from Southern Oregon University, and a Master of Educational Technology from Pepperdine University.

Dan Jung
Dan Jung  
Chief Operating Officer  

Dan has worked in PPS for almost nine years and was elevated to COO in 2019. He oversees the Office of School Modernization, Facilities, Maintenance and Operations, Planning and Asset Management, Facilities Project Management and Student Transportation.

During his time in PPS, Dan oversaw the major modernization and safety work made possible by the passage of two bonds totaling $1.2 billion. Dan is a graduate of Portland State University, where he earned a Bachelor of Science in Architecture.

Luis Valentino
Dr. Luis Valentino  
Chief Academic Officer  

Luis first joined PPS as a consultant in December and played a central role in stabilizing the curriculum and instruction department. He worked with Superintendent Guerrero when he was associate superintendent/chief academic officer for the San Francisco Unified School District.

Luis ensures all educators provide rigorous, authentic, and personalized experiences for all students, particularly our historically underserved populations. He holds a Bachelor of Science in Radio-Television-Film from the University of Texas, a Master of Science in Administration from Pepperdine University, a Master of Art in Education Technology from California State-Los Angeles, and a Doctorate of Education from UCLA.

Russell Brown
Dr. Russell Brown  
Chief of Systems Performance  

Dr. Brown came to PPS from Baltimore County Public Schools, where he served as Chief Accountability and Performance Management Officer. He is a well-respected leader whose research background includes the management and conducting of program assessments, accountability structures and boundary review processes. Prior to Baltimore, Dr. Brown was Deputy Chief of Organizational Accountability at Cleveland Municipal School District.

Dr. Brown holds a Doctorate of Counseling Psychology from the University of Akron. His published work and presentations cover a myriad of subjects, including student safety, professional development, student achievement testing and educational research partnerships. He has also worked professionally as a university instructor and children’s mental health therapist.

Joe LaFountaine
Joe LaFountaine  
Regional Superintendent,  
High Schools, Multiple Pathways  

Joe oversees and supports PPS's nine comprehensive high schools and the alternative schools and programs in the Multiple Pathways to Graduation department.

Joe is a veteran educator who has more than 30 years of experience in three different school districts in Oregon.

Liz Large
Liz Large  
Interim General Counsel  


Liz came to PPS from Kindercare Education, where she was executive vice president, general counsel and corporate secretary.  Throughout her legal career, she has provided strategic guidance and response to complex emerging business, legal and education policy issues. Liz is licensed to practice law in Oregon, Washington and California. 

Liz provides legal advice that promotes district goals, accelerates equity, preserves relationships and allows staff and students to focus on teaching and learning. Liz earned a Bachelor of Arts in Economics and History from the University of Washington, and a Juris Doctorate from Willamette University.

Claire Hertz
Claire Hertz  
Deputy Superintendent,  
Business & Operations  

Claire came to PPS from the Beaverton School District, where she served in a number of roles, most recently Chief Financial Officer. She has built a legacy of success in managing finances and leading operations for school districts, including spearheading school bond efforts. She has worked previously for school districts in Newberg, Parkrose and Roseburg.

Claire oversees key departments in PPS: business and operations; finance and accounting; school modernization; facilities management; and technology. She holds a Bachelor of Arts in Latin American Studies from UCLA and a Master of Education from Wilkes University.

Stephanie Soden
Stephanie Soden  
Executive Chief of Staff  

Stephanie joined PPS in January 2018 as Chief of Staff and was elevated to Executive Chief of Staff in March 2019. She oversees Human Resources, Communications, the Office of Strategic Partnerships and Engagement, the board office, government relations, the Ombudsman and complaint proces, as well as supporting the superintendent in daily operations and management.

Stephanie came to PPS from Metro, where she served as chief of staff and chief policy advisor to the agency’s president. She served as public affairs director for the Oregon Department of Justice and held positions with Multnomah County and the governor’s office. She has a Bachelor of Arts in Political Science from the University of Oregon and a Bachelor of Science in Elementary Education from Concordia University.

Sharon Reese
Sharon Reese  
Chief Human Resources Officer  


Sharon has more than 19 years of experience as a human resources leader, consultant, and employment law attorney, including more than 11 years with Knowledge Universe. Sharon's strengths include partnering with executives and emerging leaders to identify organizational priorities, develop staff, and improve team functions. Sharon earned a Bachelor of Arts in English Literature from Scripps College, and a Juris Doctorate from the University of Michigan.

Cynthia Le
Cynthia Le  
Chief Financial Officer  

Cynthia came to PPS from the Reynolds School District, where she served as director of finance since 2010. Under her leadership, the Reynolds district received clean audit reports six consecutive years, which helped the district build three new schools and upgrade all campuses under a 2015 Bond.

In PPS, Cynthia oversees budget analysis, procurement and contracting, financial services, and payroll and accounts payable. She is a graduate of Portland State University, where she earned a Bachelor of Science in Business Administration, with a minor in Accounting.

Jonathan Garcia
Jonathan Garcia  
Chief Engagement Officer  


Jonathan joined PPS in October 2017, and in February 2019 was elevated to Chief Engagement Officer. In his role, Jonathan leverages the power of student, family and community voice with the generosity of business and philanthropy to strengthen PPS’s mission of providing a rich and dynamic learning experience for every student. He’s led similar initiatives in diverse urban communities, creating strong movements in support of young people and public education.
A son of undocumented immigrants, Jonathan graduated with a Bachelor of Arts in Sociology & Philosophy and a Master of Arts in Management, from Azusa Pacific University. He has earned multiple professional accolades, including being named to Forbes' “30 Under 30 in Education” list.

Keeley Simpson
Dr. Keeley Simpson  
Regional Superintendent  
Jefferson-Madison-Lincoln-Roosevelt Cohort  

Dr. Simpson joined PPS in 2018. In her role, she oversees and supports the cohort that includes the elementary, middle and K-8 schools that feed into Jefferson, Madison, Lincoln and Roosevelt High Schools.

Dr. Simpson came to PPS from the Houston Independent School District, where she was a School Support Officer, leading 15 diverse schools. She has more than 15 years of educational experience and has served as a teacher, assistant principal and principal.

Rosanne Powell
Rosanne Powell  
Senior Manager, Board of Education  

Rosanne serves as PPS Board of Education manager.  She supports the board, serves as liason with PPS executives, directors, staff and employees, helping to fulfill the commitment of serving all students to the highest standards. Prior to this role, Rosanne worked in the Human Resources team as a Recruitment Specialist, in school communities supporting principals and in the Dual Language Immersion programs, supporting growth of the programs across the district.  

Rosanne attended UC Santa Cruz, where she studied Psychology.  She is the proud parent of two PPS students.

Dani Ledezma
Dani Ledezma  
Senior Advisor,  
Racial Equity & Social Justice  

Dani comes to PPS from the Coalition of Communities of Color, where she had served as interim Executive Director. Before that, she served as a policy advisor to Govs. Kate Brown and John Kitzhaber and spent more than a decade in leadership roles with the City of Portland.

In her role, Dani will help guide the process of building a clear strategic direction for equity, diversity and inclusion at PPS. Dani holds a degree in Government and Peace Studies from the University of Notre Dame and is a graduate of Unidos, a statewide Latino leadership program.