Hi and thanks for your question to clearify this.
The work center is not assigned to an org unit. The work center is used to define teams. We are using the Position and the Person within the work center. The Position is assigned to an org unit (type position) to have the possibility to have several persons on this position as responsible persons. The persons on the position are assigned in the org structure.
Additionally we are assigning persons directly to the work center (as team members). The current problem is to assign one person to the team for several time ranges.
Regards, Vanessa