Final answer:
All the organizational change theories mentioned (Future search conferences, Large group interventions, Action research) adopt an open systems view, which acknowledges the interaction and influence of the environment on organizations.
Step-by-step explanation:
The organizational change theories and practices that adopt an open systems view include Future search conferences, Large group interventions, and Action research. These approaches understand that organizations interact with and are influenced by their environment. Change strategies stem from this understanding, designing processes that are open to external input and collaborative problem solving within the systemic context. To encapsulate, all of these change theories and practices adopt an open systems view.