We recently changed our books that are used in class and as a result experienced high stress from the sutdents who wanted the books they were origianlly using.
They felt unimportant and that we should have asked them before changing books. I believe we lost some trust from not preparing the students in advance for the change.
We experienced a high drop number which could have been elimlinated by handling the situation from a student centered approach vs a what's good for the school approach.