Senate and State Government reviews into inclusion in Australian schools during the last two decades have revealed that the inclusion of students with disabilities in schools has proved challenging. A qualitative study involving interviews with 50 leaders in inclusive education suggest that currently the secondary school context is a barrier to the development of inclusive teachers. Although inclusive policies and legislation are in place, they are not supported by adequate funding and resources. This has had a negative effect on the capacity of systems, schools and teachers to be inclusive. From the views expressed by the participants in this research, it is clear that there is a continued need for systems to allocate adequate funding and resources, review current secondary school structure and professional learning, and for stakeholders to have access to specialist knowledge so as to enact the philosophy of inclusion. (Contains 1 table.)