Background: Diabetes is a complex disease requiring a multidisciplinary approach. However, the dynamics of this collaboration and the involvement of healthcare providers remain unclear. Aim(s): To explore the composition, the division of roles/tasks, and the collaboration in a diabetes team. Methods: A qualitative, explorative study with six focus groups was conducted, of which four focus groups were with healthcare providers (n = 34) and two with informal caregivers and persons with diabetes (n = 13). In addition, two in-depth interviews with doctors were performed. An iterative process of data analysis took place, guided by the Qualitative Analysis Guide of Leuven (QUAGOL). Results: All participants confirm the importance of patient empowerment and the fact that the person with diabetes should have a central role within the team. However, this has not been achieved yet. This research gives a clear insight into the dynamics of a diabetes team. Roles and tasks are allocated according to the specific expertise and knowledge of the different healthcare providers. Interprofessional collaboration is the ultimate goal. However, the diabetes team is often formed ad hoc depending on the needs of the person with diabetes and the preferences for collaboration of the healthcare providers. Furthermore, this study revealed some important bottlenecks with regard to the knowledge of healthcare providers, persons with diabetes and their informal caregivers, the regulation and reimbursement. Discussion: Our study uncovers the dynamics of a diabetes team and its members. Healthcare providers work mainly alone, except in hospitals, where they can consult other healthcare providers briefly if necessary. Although collaboration proves to be difficult, all healthcare providers ask for a more intensive interprofessional collaboration. Conclusion: In order to improve quality of diabetes care, patient-centered care and the satisfaction of patients, informal caregivers, and healthcare providers, efforts have to be made to facilitate interprofessional collaboration. This can be achieved by sharing information via electronic shared patient records, coordination, overview, local task agreements, simplified legal regulations, and an adjusted financing system.