This article discusses the connections between rhetorical theory and business communication. It highlights the need for a clearly articulated discipline of rhetoric in business communication, especially in light of the global COVID-19 pandemic and changing cultural and social norms. The article emphasizes that rhetoric can provide a solid foundation for students to effectively adapt to changing situations and communicate more effectively. It also addresses the suspicion and challenges faced by embedded rhetoricians and business communication researchers who lack a disciplinary identity. The article concludes by emphasizing the importance of actively discussing business communication theory, practice, and pedagogy from the perspective of rhetoric to develop a more concrete disciplinary identity.