Complex sentence: Since the beginnings of organizational development as a profession, diagnosis has moved from the purely behavioral towards a strategic and holistic business diagnostic approach, and from looking at human interventions in isolation to exploring the interactions of people in the context in which they operate.
Split into simpler sentences: Since the beginnings of organizational development as a profession, diagnosis has moved from the purely behavioral towards a strategic and holistic business diagnostic approach. Moving away from looking at human interventions in isolation, to exploring the interactions of people in the context in which they operate.