Ok, so your candidate has thought long and hard, and they've come to the conclusion that it’s time to find a new job. You’ve sent off their CV, you’ve guided them through the nail biting interviews, and finally, you’ve secured them the offer of a lifetime. Hurrah! You deliver the good news, they accept and hand in their notice to their boss. And that’s it, right?

Not always, no.

Cue urgent call from your candidate. What’s this? He explains that his contribution is vital to the…