Any leader who respects the organization they serve should have the common sense to know when it's time to say goodbye.

CNN: Pope Benedict shows true leadership by resigning

Shadow energy secretary Caroline Flint told delegates at her party's conference "the time has come to say goodbye to Ofgem".

BBC: Labour promises to scrap energy regulator Ofgem

I'm going to come back tomorrow and take my time to say goodbye to everybody, just get everybody's email address.

CNN: No tears as 'Aussie Kim' bows out