Holbrook Superintendent of School Joseph Baeta, one of four finalists for the superintendent’s post in Norton, is expected to interview publicly in early January. Holbrook School Committee member Ann Poppenga reacted to the news by saying Baeta’s departure would be a “tremendous loss” to the district. She credited Baeta with helping to increase MCAS scores, solving a discipline problem at Holbrook Junior-Senior High School, and boosting the student population by improving the school system’s public image. “He’s just been phenomenal,” she said. Barbara Davis, chairwoman of the committee, when asked if she was surprised Baeta had applied elsewhere, said, “Perhaps. On the other hand, there’s been a lot of stuff going on in town.” She declined further comment. The School Committee and superintendent have disagreed with the Board of Selectmen over the selectmen’s ongoing efforts to explore regionalizing the schools.