I too have had similar problems. Trying to explain to students that everything in the books that they read, does not always work for everyone as we all are remarkably different. Books should be used more as a baseline. I teach them that the concepts taught from books work but you need to look at different success markers with patients to see that maybe it isn't working for that specific patient and that maybe a concept from something similar will work better for them. My first class with a new group of students starts with the 9 dot puzzle with the clue of: think outside the box. It gets them in the mind set of the type of thinking that they are going to need in there future career.