If you try to avoid risk, you actually risk total failure. Or worse: mediocrity. Take it from Shellye Archambeau. She led the most stunning Silicon Valley turnaround you’ve never heard of. She took the role of CEO for a failing tech company, months from bankruptcy. Through a series of calculated risks, she led it through a complex merger, a head-spinning pivot, and grew it into MetricStream, which now boasts 1200 employees and a valuation in the hundreds of millions. How? Clear goals and big risks — the same principles that have defined her career. With a cameo appearance by champion poker player Liv Boeree.

You can marshal the power of millennials to grow your company, but you have to redefine your concept of loyalty. To keep millennials as users (and employees), you’ll need to keep evolving — and help them evolve. No one understands this better than Brit + Co founder Brit Morin. As a maker and media creator, Brit is constantly co-evolving with her (mostly millennial) audience—and team. It’s a secret to scale with the generation adapted to a world of constant change.

You can scale big with a simple idea (and a tiny team!) — but only if you catch the prevailing winds. That’s what Kevin Systrom did when he co-founded Instagram: The simple photo app tapped the right trends, built on larger social networks, and dodged the complexities that would have slowed them down. The result? 30M users in 18 months. And a $1B sale of a 13-person company.