It takes a strong leader to admit having blind spots. Tony West, now in his sixth year at the helm of Uber’s legal department, has made it his mission to elevate the people who will point them out.

“I’ve spent a lot of time surrounding myself with people who complement my weaknesses,” he said. “Not only do they help me make better decisions—because they are recognizing things and seeing things I would miss—but they tell me the truth and give me straight feedback.”