R u sure u aren't a professor of English, locked away in some basement somewhere? LOL ;)
Absolutely not :)
However, I have worked for four schools over seven years in Poland, and every school that I worked for, there was a selection and discussion of future teaching material in the summer months by all members of the teaching staff.
I must admit that I introduced this in my first school and have carried it on since, because if you want to have a cohesive teaching syllabus for the students, then there has to be some impute from the guys who are going to teach it.
Without this, the whole process just turns into bedlam, with dissatisfied and frustrated teachers criticising the material, which then transfers to the students in the form of dejected teachers not giving 100% effort to their students.
I ask you Seanus, how many times in your years with the Callan Method have you heard the statement, “this method is outdated”?
And you yourself admitted that you used to adapt it and not stick totally to the method as it is impossible, because there has to be some flexibility and adaptation in your teaching.