LAFAYETTE -- Lafayette School District Assistant Superintendent Rachel Zinn has been selected to replace Superintendent Fred Brill, who is leaving to become the top administrator of the San Lorenzo Unified School District.

The school board announced at a special meeting Tuesday that they had chosen Zinn as the district's new administrative leader.

According to the new superintendent, the appointment came after a quick selection process that began after Brill announced his resignation more than a week ago.

Zinn joined the district in 2006 as the director of curriculums and instruction before her promotion to assistant superintendent.

The longtime Lafayette resident has been involved in education for more than 30 years, primarily in upper elementary and middle schools. She was previously principal of Dallas Ranch Middle School and Park Middle School in Antioch.

Zinn said she plans to focus on a number of issues the district faces, including implementation of Common Core standards, a possible parcel tax and an expanding student population.

"We'll definitely be looking at increased enrollment in a way that support students. It's not about packing classrooms," the new superintendent said.

Zinn's first day is Oct. 7.