Chris Zepeda-Millán, associate professor of public policy, spoke to the Daily News about labor issues at the Los Angeles Unified School District and the road ahead for Superintendent Alberto Carvalho. After a three-day strike, LAUSD reached a contract with service workers including bus drivers, custodians, cafeteria workers and instructional aides. Now the district must negotiate a settlement with the teachers union, which has the upper hand, said Zepeda-Millán, chair of UCLA’s labor studies program. “The district knows [the unions] can shut [schools] down pretty easily,” he said. “That’s going to be in the back of both teams’ minds as they’re negotiating.” If successful, the negotiations could strengthen the superintendent’s influence. “Carvalho has a chance to say, ‘I’m going to do things differently this time and let’s show the state and the country that if we have well-paid teachers, smaller class sizes — what all the research says works — we could have great public schools again,’” he said.