I’ve had plenty of people leave to take jobs elsewhere, and that’s okay. The good news is they’ve left for amazing jobs at Facebook, Amazon, Disney, Vans, Apple, Twitter, BBDO, Venables Bell, Goodby and 72 and Sunny, to name a few. As painful as the notes below are to receive, they remind me that while I can’t keep everyone forever, I can have a positive impact on their careers.