In exploring intricate relationships among environmental factors, internal school conditions and contextual variables that facilitate organisational learning, 90% of staff in six Western Australian secondary schools provided data for this exploratory study. Findings from the study not only shed light on the decade-old debate about the basic momentum for organisational change, but they also help rank-order the sources which initiate change. Additional analyses reveal factors from external environmental and internal school conditions that interact in bringing about organisational learning processes and outcomes in different contextual situations.