Summary List PlacementOn a weekend in 2014, Tracy Chou was working out of her favorite coffee shop in San Francisco's Mission District. The star Pinterest engineer had agreed to meet with Brian Armstrong, the founder of a fast-growing digital-currency startup called Coinbase. Armstrong hoped Chou might become his new director of engineering. Instead of a typical coffee meeting, Armstrong asked Chou to leave the cafe and walk with him through the neighborhood, filled with busy eateries and vibrant murals. Then, Armstrong invited Chou to drinks at a pizzeria where the pair grabbed outdoor seats.