"There's four levels of learning. I tell them there's going to be stage number one where you are unknowingly incompetent," he says. "Unknown competence is when you're actually pretty good at your job, but you don't even recognize it yet." The best predictor of future success is past success: Ask four types of questions, skill-based, value-based, behavior-based and character-based. 'You never accidentally stumble into a great team. You intentionally build one,' she adds.