I am currently teaching in a Primary school, in Key stage 2. Before joining this school I worked in an Infant school, the majority of my teaching experience is Key stage 1 / Foundation stage and these are my preferred stages to teach. I have made my preferences known to my Headteacher, who informed me in July that I would be working in Key Stage 2 for the second year in a row, as I am "not a priority". This was said despite me having taught in Year 2 at my current school and achieved good progress and results. A job has come up for an experienced Key Stage 1 teacher and assessment coordinator in an Infant school, but the school has a notice to improve. What would you do?