The context is that the staff don't know enough about the options available to their pupils because they are not teaching the GCSE options due to transferring schools at KS4. I am suggesting that they should collaborate with the upper schools so that they can gain a more thorough understanding of the courses available to pupils without having to look it up in the school prospectus (and therefore having no extra info than the pupils and parents),
You can re-write my whole 3500 essay if it will help :)