Manuel L. Isquierdo, Ed.D. joined the Sunnyside Unified School District in July 2007 to serve as the district’s new superintendent. Dr. Isquierdo comes to Sunnyside from Great Schools Workshop, Inc., where, as Superintendent- in-Residence, he used his expertise in school leadership and improvement to help schools with strategic planning and developing action plans to improve student achievement, lower dropout rates and improve school environments.

Dr. Isquierdo has served as an administrator in both urban and suburban school districts for the past 20 years, two years as an Area Superintendent in the Dallas Independent School District and most recently two years as Deputy Superintendent of Stockton Unified School District in Stockton, California. His record is one of consistent achievement in the field of school improvement with an emphasis on improving test scores, decreasing dropout rates, and increasing graduation rates. As an urban school administrator in districts such as Kansas City, Chicago, Dallas, and most recently Northern California, Dr. Isquierdo is experienced in implementing and managing change and creating and designing successful comprehensive school reform initiatives that are being used as models at the state and national levels.

Under his leadership as principal at J. Sterling Morton East High School in Cicero, Illinois, the school's dropout rate was significantly reduced, and the school was voted the "Most Improved Hispanic High School" in 2001 and 2002 by LULAC (League of United Latin American Citizens) of Illinois. As a result, Dr. Isquierdo was asked to speak at the White House Strategy Session on Educational Excellence for Hispanic Americans with President Clinton. He was also instrumental in organizing two national summits on the "Hispanic Dropout Crisis"—one in the greater Chicago metropolitan area and the other in Dallas. He continues to be active at the national level on Latino dropout issues and increasing student achievement with an emphasis on redesigning schools.

Dr. Isquierdo was awarded his doctorate from National-Louis University in March 2004. His dissertation was titled "Latino/a Voices: A Case Study in School Reform of an Urban Hispanic High School." He earned his master's degree from Michigan State University and bachelor's degree from Saginaw Valley State in Michigan.