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
Combine small activities into composite activities
Determine whether activities are related to the same type of case and, if necessary, distinguish new business processes
Establish a case-based mindset
Remove batch-processing and periodic activities from your business process
Move activities to more appropriate places
Workload-based task assignment
Allocate tasks based on individuals' incomplete workload
Reassign tasks along the organisational hierarchy
Allocate task based on collaborative experience: handover time, interactions, diversity
Distribute tasks by interdepartmental interactions to enable or restrict involvement
Reduce the number of contacts with customers and third parties
If capacity is insufficient, consider increasing the available number of resources