The famous executive coach Marshall Goldsmith said that some of his clients do succeed in reforming their bad behavior—but no one notices! His clients had already imprinted themselves on their colleagues as jerks. So Goldsmith learned to press his clients to set up a meeting with their colleagues at which they would apologize for their behavior, promise to change, and ask their colleagues’ help to do so. Taking a cue from Goldsmith, Mark schedules a meeting where he does exactly that. That’s a defining moment—it marks a transition from the “old me” to the “new me.”