Here's an infographic I was sent, about the state of teaching in the UK. The single most cited reason for teachers leaving the profession is workload. 

Well there's a surprise.

The Department for Education is running a survey aimed at ex-teachers, to find out why they switched to something else.

Why do ICT and Computing teachers leave teaching?

If you belong to Mirandanet, you can send an email to the discussion list with any relevant facts or figures, or indeed any anecdotal evidence you may have about this more specific question. If you do not belong to Mirandanet, you may wish to send me the information instead, via this form.

While you're thinking about that, here's the infographic I mentioned right at the start of this article.