The aim of this qualitative-case study was to determine the competencies that school administrators have during the COVID-19 process and the competencies they should have in the post-COVID-19 process according to the opinions of teachers. Using maximum diversity sampling method, the researcher selected 10 teachers working in Izmir in the 2021-2022 academic year. The obtained data by using a semi-structured interview form were analyzed through the content analysis method. Research findings show that administrators mainly carry out technical work and operations related to the smooth execution of the distance education during the COVID-19 process. It also reveals that the majority of administrators are successful in technical competencies that include knowledge and skills related to their field of expertise. Based on the research findings, it can be said that both in the COVID-19 process and in the post-COVID-19 process, administrators should improve themselves not only in technical competencies, but also in humane and conceptual competencies and they should have information, technology and emotional literacy skills. Further conclusions and implications were also discussed.