County Executive Office

Tran 2014

County Executive Office staff

Budget and Analysis   

Clerk of the Board and support staff 

Emergency and Risk Management

Housing & Intergovernmental Affairs

Training and Organizational Development

County Executive Officer Minh C. Tran

(707) 253-4406

The County Executive Officer is the County’s chief administrative officer, responsible to the Board of Supervisors for overseeing the day-to-day management and coordination of County operations. In addition to recommending the appointment of and supervising 10 non-elected department heads, the County Executive Officer is responsible for providing impartial analysis and making recommendations to the Board on all policy, fiscal and administrative matters, ensuring that Board policies and direction are fully implemented, evaluating the effectiveness and efficiency of County programs, preparing and recommending the County’s annual budget to the Board, administering the County’s approved budget and conducting long-range financial planning, overseeing the County’s state/federal legislative advocacy and internal and external communication activities, managing the County’s risk and emergency services efforts and providing for the effective administration of the County’s personnel, information technology and purchasing systems.


Assistant County Executive Officer Alice Hughey

(707) 253-4153

The Assistant County Executive Officer assists the County Executive Officer in overseeing the day-to-day management of County operations, supervises the staff of the County Executive Office and acts on behalf of the County Executive Officer in her absence. Other responsibilities include:

  • Manage preparation and administration of County’s annual budget
  • Long-range fiscal planning
  • Facilities planning
  • Purchasing oversight

Alice Hughey joined Napa County in 2001 as a Management Analyst in the County Executive Office.  In 2003, she became the Chief Fiscal Officer for the Napa County Health and Human Services Agency (HHSA) and in 2011 the HHSA Assistant Director.  Since then, she also served as the Interim HHSA Director and the Interim Director of Human Resources.  Prior to joining Napa County, she held a variety of policy, program and budget management positions with national organizations in Washington, DC and Chicago, IL, including the Congressional Budget Office and the American Bar Association.  Ms. Hughey holds a Master's degree in International Relations from John Hopkins University.

Sarah Minahen, Executive Assistant

(707) 253-4424

Sarah Minahen has been with Napa County since October 2010.  She was previously employed with the Napa County Planning, Building and Environmental Services department as an Administrative Secretary II and an Office Assistant II.  Her responsibilities include administrative support to the County Executive Officer, Assistant County Executive Officer and members of the Board of Supervisors.  Prior to coming to the County, Sarah worked in the legal field in both the public and private sectors as a legal assistant for 15 years.

 Budget and Analysis staff (top)

Helene Franchi, Deputy County Executive Officer

(707) 253-4820

Areas of responsibility:

  • Assessor - Recorder-County Clerk
  • County Counsel
  • Flood Authority and Flood District
  • Planning Building and Environmental Services
  • Criminal Justice Departments
  • County Fire
  • Resort Improvement Districts

Helene Franchi has been an analyst in the County Executive Office since March 2000. She began her career with Napa County as the administrative assistant in the Probation Department, and also worked in the Public Works Department.

Ms. Franchi holds a Bachelor of Arts degree in Communication and English from the University of San Francisco. 

Molly Rattigan, Deputy County Executive Officer

(707) 253-4112

Areas of responsibility:

  • County Fair
  • Housing and Intergovernmental Affairs (staff supervision)
  • Human Resources
  • Labor Negotiations
  • Legislation
  • PERS
  • Purchasing
  • Real Estate

Molly Rattigan has been with Napa County since June 2004, and became a Management Analyst in the County Executive Office in November 2006. She previously worked for the Sacramento County Children’s Coalition.

Ms. Rattigan has a Bachelor’s degree in Political Science from Sonoma State University and a Master’s degree in Public Policy and Administration from Sacramento State.  

Bret Prebula, Senior Management Analyst

(707) 253-4826

Areas of responsibility:

  • Auditor-Controller
  • Community Resources and Infrastructure Departments and Issues
  • Health and Human Services Agency
  • In-Home Supportive Services Public Authority
  • Budget Performance Measurement

Bret Prebula has been with Napa County since 2008. He started his career with the County as a Staff Services Analyst and has promoted to positions of increasing responsibility, most recently as the Administrative Manager for the Corrections Department prior to joining the County Executive Office as a Senior Management Analyst. Bret holds both a Bachelor's and Master’s Degree in Business Administration.

Ben Guerrieri, Management Analyst

(707) 253-4197

Areas or Responsibility:

  • Treasurer - Tax Collector
  • Agricultural Commissioner/Sealer of Weights and Measures
  • Public Defender
  • District Attorney
  • ITS
  • Community Resources and Infrastructure Districts
  • Child Support Services
  • UC Cooperative Extension
  • Library

Ben Guerreri has been with Napa County since 2008. He started his tenure with the County as a Staff Services Analyst in the Child Welfare Services Department and promoted into the County Executive Office in 2017. Ben has a Bachelor of Science in Biochemistry from Biola University.

Clerk of the Board and support staff (top)

Clerk of the Board Gladys Coil

(707) 253-4196

Gladys Coil has been Napa County’s Administrative Manager/Clerk of the Board since February 2007. She has been with the County since 1996, most recently as a Staff Services Analyst II in the County's Public Works Department and previously as a Supervising Office Assistant for the Napa County Flood Control and Water Conservation District and a Senior Office Assistant and Legal Clerk with the Napa County Health and Human Services Agency.  Ms. Coil has a Bachelor’s degree with honors in Management from St. Mary's College of California.

Karita Whitney, Deputy Clerk of the Board

(707) 253-4423

Karita Whitney has been with the County of Napa since March 1998. Her responsibilities include managing the Board of Supervisors agenda and agenda packets; serving as alternate clerk for Board meetings; coordinating public hearing notifications; processing appeals and acting as secretary for the Board of Equalization responsible for administrative details of assessment appeals. 

 Greg Morgan, Board Clerk II

(707) 299-1515

Greg Morgan has been with the County Executive Office since May 2014 and with the County since 1999, most recently as a Supervising Office Assistant for the Napa County Flood Control and Water Conservation District and previously as an Office Assistant II for the Napa County Treasurer-Tax Collector.  His responsibilities include assisting with the production and distribution of the Board of Supervisors agenda and agenda packets; serving as alternate clerk for Board meetings and processing approved Board documents. 

Araceli Flores, Administrative Support Technician (se habla español)

(707) 259-5903

Araceli Flores has been with Housing and Intergovernmental Affairs (HIA) since 2007; she used to be the Secretary and is now the Administrative Support Technician.  Her responsibilities include support to HIA, Napa County Housing Authority and Affordable Housing; clerking Housing Commission, Napa Valley Tourism Improvement District and Arts Committee meetings; and performing departmental accounting functions.  Prior to joining the County, Araceli worked at St. Helena Hospital.

Emergency, Risk Management and Safety staff (top)

Kerry John Whitney, Risk and Emergency Services Manager

(707) 253-4821

Kerry John Whitney has been Napa County’s Risk and Emergency Services Manager since June 2006.  He manages the County’s Comprehensive Risk Management program, including coordinating the County’s liability claims program, managing the County’s safety program, contract review and risk transfer and determining insurance coverages (liability and property) for all County departments, properties, vehicles and equipment. Prior to joining the County, Kerry spent more than 24 years as a liability claims manager for George Hills Company, Inc., handling claims for public entities, JPIA pools and various insurance carriers. He also was the Risk Manager for the City of Fairfield for approximately two years.

Mr. Whitney holds a Bachelor's degree in Social Ecology, with a social science emphasis, from the University of California at Irvine.

Kevin Twohey, Emergency Services Officer

(707) 299-1892

Areas of responsibility:

  • Coordinate the services of the County’s long-range emergency preparedness program
  • Plan, implement, coordinate and direct area-wide Emergency Services Programs
  • Maintain Napa County’s Emergency Operations Plan and Hazard Mitigation Plan
  • Administer and coordinate emergency preparedness training, education, and public information programs

Kevin has been the Emergency Services Officer in the Emergency Services Division of the County Executive Office since May 2010. His career in Emergency Services began with the St. Helena Fire Department, where he retired as Chief in January 2010.

Dave Peters, Safety Officer

(707) 259-8744

Areas of responsibility:

  • Plan, organize and direct the County's Occupational Safety Program
  • Monitor and administer safety policies and applicable laws dealing with employee safety and liability exposures
  • Assist departments in determining appropriate safety standards to ensure effectiveness, awareness, accountability and compliance
  • Investigate work-related accidents and injuries and implement measures to prevent their recurrence
  • Train new employees in safety policies, hazard identification and other safe work practices to prevent injuries and illnesses

Dave retired after 30 years of service with the U.S. Navy and is a former paramedic, helicopter rescue swimmer and Command Master Chief.  His previous position was as an Occupational Safety and Health Program Manager in Naples, Italy.  Mr. Peters graduated summa cum laude from Embry Riddle Aeronautical University with an undergraduate degree in Technical Management.

Sandra Hage, Administrative Support Technician

(707) 253-4799

Sandra Hage has been with Napa County since October 2012.  Her responsibilities include administrative support to the Risk and Emergency Services Manager, processing workers' compensation claims and assisting with Napa County's Proximity Housing Program.  Prior to coming to the County, Sandra worked for a private investigation firm conducting pre-employment screening and workers' compensation investigations for 18 years. 

Housing and Intergovernmental Affairs (HIA)(top)


Nancy Johnson, Housing and Community Development Program Manager

(707) 299-1352

Nancy Johnson has been Napa County’s Housing and Community Development Program Manager since July 2007 and is responsible for management of the County’s three migrant farm worker centers and other affordable housing programs. Prior to joining the Community and Intergovernmental Affairs Division, she was Principal Planner with the County and previously served as an Associate Planner with the City of American Canyon, as well as Project Manager with Napa Valley Community Housing.

Ms. Johnson holds a Bachelor's degree in Environmental Design and Planning from Western Washington University in Bellingham and is currently working on her Master's degree.

Michael Karath, Staff Assistant to the Board of Supervisors

(707) 299-1477

Michael Karath has served as a Staff Assistant to the Board of Supervisors since January 2008. He is responsible for helping supervisors Mark Luce and Keith Caldwell with constituent services and policy issues. Mr. Karath also assists the Director of Housing and Intergovernmental Affairs with administering the County's legislative platform. Prior to joining the County, Mr. Karath worked as Chief of Staff to Massachusetts State Representative Demetrius J. Atsalis in the House of Representatives. He also worked as a journalist and editorial writer for the Cape Cod Times newspaper in Hyannis, MA.

Mr. Karath earned a Bachelor of Music degree in Jazz Composition and Arranging from Berklee College of Music in Boston, MA. He also earned an Master of Public Administration degree from Harvard University's John F. Kennedy School of Government in Cambridge, MA.

Nelson Cortez, Staff Assistant to the Board of Supervisors (se habla español)

(707) 299-1478

Nelson Cortez joined Napa County as a Staff Assistant to the Board of Supervisors in July 2015.  Mr. Cortez works closely with Supervisors Brad Wagenknecht, Diane Dillon and Alfredo Pedroza, assisting them with constituent matters and organizing community meetings to address specific community concerns. Mr. Cortez's prior experience working in government includes employment as a Senate Fellow and later as a Legislative Aide to California State Senator Marty Block. Mr. Cortez earned a Bachelor of Arts degree in Latin American and Latina/o Studies from the University of California, Santa Cruz.

Training and Organizational Development 

Marissa Murphy-Becerra, Training and Organizational Development Officer

(707) 253-4477

Marissa Murphy-Becerra has been Napa County's Training and Organizational Development Officer since May 2017. In this capacity she oversees initiatives that contribute to individual and organizational success, including needs assessments; talent development; succession planning; organizational culture and performance; employee recognition; continuous quality improvement; and coaching/mentoring. Prior to joining the Napa County family, Marissa worked for San Mateo County for 15 years. Marissa holds a bachelor's Degree in Communications and Marketing, and a Master's in Public Administration with an emphasis in Training and Organizational Development.