For Lisa Marie Harris, serving as the director of finance for the San Diego County Water Authority is far more than a job. It’s part of a calling that started in college. As an undergrad, Harris secured a fellowship to study public policy at the University of Michigan, which confirmed her desire to pursue a career in government finance. Today, she is responsible for overseeing the Water Authority’s $2.3 billion debt portfolio, developing the agency’s bi-annual $1.5 billion operating budget, and setting the agency’s annual rates and charges.