Understanding how formal leadership roles relate to emergent communication processes remains a central challenge in the study of collaborative work systems. Drawing on Foulkesian group analysis, this paper examines whether core interactional functions—such as translation and resonance—align with formally assigned managerial roles in task-oriented teams. We propose an utterance-level, role-aware semantic framework in which large language models are used to assess communicational functions as indicators of group-level processes. The framework is empirically validated on scenario-based meetings from the AMI Corpus, enabling a comparative analysis of Project Managers and non-PM participants across aggregated and temporal dimensions. Results indicate that while meaning-clarification (translation) tends to be more strongly associated with formal leadership, most communicational functions remain dynamically distributed across participants. The study contributes a scalable, LLM-supported approach for analyzing leadership, coordination, and meaning-making in collaborative information systems.