I am 10 years into teaching and have been at current school for 3 years. It's become apparent overtime that there are an elite group of teachers in our department who the HOD only trusts with top set classes and A-level. I have taught triple science in previous schools but don't get a look in at this school and all but the bottom set year 11 groups are divided between these 3 elite teachers so they get all the gain time at the end of the year. I've spoken to my HOD informally about being deskilled if I'm not teaching my specialism but this has fallen on deaf ears. The HOD and SID happen to be besties and so have it all wrapped up between them. I'm at a loss at what strategy to take here. Finding another job is an option but having to say I've not been teaching triple, top sets at GCSE or a level would put me at a real disadvantage anyway. Any advise as to what my next move should be to put my case forward?