Growth Leaders from Meta, Twitter, and Instacart on What Actually Moves the Needle

Change One Word, Unlock a Market

When Facebook was struggling in Japan, the team found something odd in the data. Japanese users weren't inviting friends. Conversion rates on the invite step were dramatically lower than other markets.

The country manager explained it was cultural. Inviting people to something new was considered rude. Most teams would have accepted that and moved on. But Ed Baker's team at Facebook made a single tweak: they changed "invites" to "announcements."

Instead of calling them invites, we called them announcements. And we said, now that you've signed up for Facebook, why don't you let Facebook announce to all of your friends that you're now on Facebook and this is where they find you? And suddenly everyone started saying, sure, I'll let Facebook announce this to all of my friends.

— Ed Baker, formerly Head of Growth at Uber

Japan went from one of Facebook's slowest-growing countries to one of its fastest. They surpassed their local competitor, Mixi, shortly after. One word. Massive impact.

Retention Is the Growth Lever No One Talks About

Most founders obsess over acquisition. New users. Top of funnel. But the growth leaders who scaled the world's biggest platforms say that's backwards.

At Facebook, the growth team focused far more on retention and engagement than acquisition. As Baker puts it, those metrics become exponentially more important as you scale. At Instagram, Bangaly Kaba's team improved retention from 20% to over 50% by obsessing over the account graph and understanding which connections actually made users come back.

As you get bigger, those metrics of retention and engagement actually become a lot more important to maintaining growth than new user acquisition.

— Ed Baker

Casey Winters at Pinterest saw the same pattern. Growth isn't about building new features. It's about connecting people to value that already exists. If users don't stick, no amount of acquisition fixes that.

The Best Growth Wins Come from Ignoring the CEO

At Uber, Baker's team found that requiring a credit card before the first ride was killing conversion in India. Most people didn't have credit cards. Those who did faced two-factor authentication friction that made the experience worse, not better.

The team wanted to test letting riders book their first trip without entering payment info. Travis Kalanick told them not to run the test. They ran it anyway, secretly, in Hyderabad.

When we got the data back, it had doubled conversion rate to paid first trip. So when we saw that it was a 2x improvement, we decided this is something we need to do. And then when we shared that data with Travis, he said, I hate you guys, but I love you guys.

— Ed Baker

The feature rolled out to dozens of countries. Uber unlocked millions of riders by removing a barrier everyone assumed was non-negotiable.

At Twitter, Andy Johns faced similar resistance. The signup flow required users to pick a unique username before proceeding. As Twitter grew, the namespace shrank. People would try a name, get an error, try again, get another error, and leave. Johns and a tiny team—one designer, one 19-year-old intern, one engineer—shipped a hacky solution without asking permission. They auto-generated usernames and let users change them later.

Result? 70,000 more signups per week. A 20-30% lift from four people and a scrappy A/B test.

Don't Hire a Head of Growth Before Product-Market Fit

Elena Verna has advised Miro, MongoDB, and dozens of high-growth companies. Her most controversial take? Most startups hire growth teams way too early.

If you don't have product-market fit, what are you growing? Hiring a head of growth when you're a 30-person company with no traction is a waste of money and focus. Worse, it lets the rest of the team off the hook. Your first 50 people should all feel pressure to drive growth, not outsource it to a single team.

If you immediately hire a head of growth or a growth team and say, hey, none of my PMs, none of my marketers are responsible for growth at all because I'm immediately outsourcing it to another team where I'm putting all of the growth pressure on is an absolute mistake.

— Elena Verna

Verna's advice: wait until you have product-market fit and early traction. Then figure out if your internal team can evolve into growth owners before you bring in external talent. Growth revolutions led by outsiders often get rejected by the existing culture.

When One Channel Works, Crank It Until It Breaks

Rob Schutz, head of growth at Ro, has controversial advice for early-stage founders: don't diversify. If Facebook ads are working and your LTV-to-CAC is healthy, pour everything into that channel.

Things change fast. A channel that works today might not work next quarter. When you find something that delivers real, substantial growth, lean in. You can diversify later.

Schutz also bets on decisions without hard data. When Ro partnered with Major League Baseball in 2018, they had some demographic overlap—Roman's average user was 46, MLB's average viewer was early 50s. But they didn't have proof that slapping the MLB logo next to Roman would lift conversion 15%. They made the leap anyway, betting on reputation and legitimacy. Years later, it's still a core partnership.

The pattern across all these operators? Small, specific bets. Ruthless focus. And the willingness to ship without consensus when conviction is high. Growth at scale isn't about frameworks. It's about finding what works, understanding why, and building an unfair advantage around it.