Too many cooks spoil the broth
Minimize the number of departments, groups and persons involved in a business process
Reijers, H., & Liman Mansar, S. (2005). Best practices in business process redesign: an overview and qualitative evaluation of successful redesign heuristics. Omega, 33(4)
Employing this approach should mitigate coordination issues. Time saved on coordination can be allocated to case processing. Decreasing department count could reduce shared responsibilities, akin to the split responsibilities approach. Yet, it might hinder expertise development (quality concern) and routine efficiency (cost concern).
Foundational free Patterns
Consider automating activities
Assign a responsible individual for handling each case type
Form cross-department teams for end-to-end case handling.
Elevate physical constraints by applying new technology
Consider whether activities may be executed in parallel
Consider to deepen or broaden the skills of resources
Consider the division of a general activity into two or more alternative activities
Offer customers the possibility to choose among privacy settings
Expertise-based task assignment
Match tasks to experts' specialized skills for efficiency
Reduce the number of contacts with customers and third parties
If capacity is insufficient, consider increasing the available number of resources