He later earned two master's degrees from Harvard University, one in School Leadership and Principal Certification and one in Educational Policy and Management.
[4] In 2012, he became Deputy Superintendent of instruction, innovation and social justice in the San Francisco Unified School District.
[10] He announced at a press conference that he would focus on equity, supporting struggling schools, and preparing students to graduate.
This plan was met with criticism, including student protests at both the PPS central office and at the Rose City Park School,[11] causing Guerrero to apologize for not having "co-constructed a conversation" with ACCESS families.
[12][13] In December 2017, Guerrero also proposed he would relocate students to Pioneer, a school for children with behavior problems and disabilities, which was met with further protest.