Treatment focuses on movement rather than sounds. Depending on the severity of the child, I use a combination of AAC with DTTC for very severe cases. AAC is faded out when appropriate, but continues to be used as needed.
I attend workshops and talks that discuss recent research in CAS especially when attending the ASHA conference. I also check the Apraxia Kids website regularly for resources and events.
Parents attend all therapy sessions and therapy procedures/activities are explained to them. The research behind the strategies used are explained and the importance of intensive practice is highlighted. Parents are provided with practice words and phrases after every session. Additionally, parent and child input is used when selecting new target words to focus on with important and relevant words that would make a significant impact on the child's communication.
I used high tech AAC such as PRC ACCENT 1000 during our sessions with children with severe CAS in order to help with production of harder words that the child wanted to say but could not yet, and in order to increase language complexity by putting words together to form sentences. So if the child is working on "mom" verbally, we would use AAC device to say "mom look, mom hug, hi mom".