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
Let workers perform as many steps as possible for single cases
Avoid shared responsibilities for tasks by people from different functional units
Consider whether it is eco-friendly to let humans work over machines
Let customers interact with your organization whenever they want to.
Explore whether a process can easily be used for additional products or services
Expertise-based task assignment
Match tasks to experts' specialized skills for efficiency
Constraint-based task assignment
Allocate tasks considering business process execution constraints
Experience-based task assignment
Delegate task according to experience: execution frequency, case involvement, interactions
Allocate task based on past feedback or quality metrics
Reduce the number of contacts with customers and third parties
If capacity is insufficient, consider increasing the available number of resources