'If you love somebody, set them free,' advised Sting back in 1985. Little did he know he was setting out a core principle of leadership for the 21st century.

It's the big idea behind award-winning author Helen Beedham's second book People Glue: Hold on to your best people by setting them free, which leans into that paradox with rather more by way of helpful detail than the Police front man ever provided. Through rigorous research and conversations with top CEOs she has identified four key freedoms that top talent most values, and also the anti-freedom forces that most frequently prompt them to walk out of the organizational door.

We also talk about what it means to write a second book – why WOULD you put yourself through that again? And what might you do differently second time around?