Haven't been interviewed for years and years. Am already a Hod, but only since Sept. I have been at my school a long time, and am leaving, or trying to, because of vision (lack of it) and leadership (lack of it). Head is quite new in post. How do I answer the inevitable 'why do you want to leave?' question without sounding negative and unprofessional? I'm essentially leaving just after reaching the post I had obviously been working towards, which has got to look odd.
Any advice would be great.