Bilingualism is often a requirement for Chiefs of Staff in Sweden, especially in companies with international operations. Swedish is essential for communicating with colleagues, trade unions, and authorities, while English is necessary for working in global teams and reporting to international management. In some multinational companies, English is the dominant working language, but knowledge of Swedish is still considered an advantage. The ability to switch between languages and cultures is an important factor in success for CoS, especially when the role involves driving change and collaboration across national borders.