Recently, Public Agenda produced a new resource for institutions that showcases the various design elements of CBE and shares information from a large national survey of CBE programs that identify some of the more popular and emerging practices. (Full disclosure: CAEL was a 'thought partner' in the Gates Foundation funded initiative that conducted the survey and produced the report.)
In addition, the project created an interactive design tool for institutions to use in their initial thinking through of their own design elements.
These kinds of tools are a good start for helping new CBE programs develop.