The document discusses the history and evolution of applied behavior analysis (ABA) as a treatment for individuals with autism spectrum disorder (ASD) and other developmental disabilities. It outlines key developments in ABA from the 1930s to the present day, including the establishment of the Behavior Analyst Certification Board in 1998. The document then considers whether board certified behavior analysts (BCBAs) may make good trainees in Leadership Education in Neurodevelopmental and Related Disabilities (LEND) training programs. It lists skills BCBAs could contribute as well as some areas they may not be as well-suited for, and concludes by discussing potential benefits of co-locating LEND programs with ABA programs and coursework.