Even though a group forms with the intention of providing supports and services for people experiencing a defined cluster of problems or issues, a human services agency likely will not develop For most service provision, an agency is neither appropriate nor needed. We can think of this basic delivery strategy as ad hoc service provision. This may happen somewhat spontaneously when a few concerned people see an individual or family is experiencing difficulty and struggling to manage. Everyone just pitches in and helps, contributing whatever resources and expertise they can bring to the specific circumstances. …