Christopher Miller on How HubSpot Built Product-Led Growth Before It Had a Name

Steal What No One Else Wants

When Christopher Miller joined HubSpot in 2016, the company had just launched a free CRM—a big strategic bet with no roadmap for what came next. Most PMs would have waited for marching orders. Miller and his tiny growth team did the opposite: they hunted for orphaned problems.

"We approached the team who owned it and we were like, are y'all working on this?" Miller recalls. The answer was no. "We were like, can we take this? And they were like, sure, if you want it. And so we took it and immediately blew it up."

This wasn't diplomatic collaboration. It was opportunistic land-grabbing dressed up as radical accountability. At the time, only a sliver of HubSpot's subscription revenue came from self-service channels. The growth team saw a gap between the company's stated ambitions and where resources were flowing. They claimed it.

That attitude of sort of saying that every problem is our problem and radical accountability and ownership mentality helped us find opportunities that maybe the business wasn't explicitly asking us to solve, but we were able to triangulate why it might be important for the business for us to solve it.

— Christopher Miller

The result: HubSpot transformed into one of the most successful product-led growth machines in B2B. Miller's team didn't wait to be invited. They proved they were hungry, so leadership kept feeding them.

Fail 70% of the Time or You're Not Trying

Miller has a rule for growth teams: if you're winning more than 30% of your experiments, you're playing it too safe. Most PMs optimize for predictable wins. Miller optimizes for learning velocity and moonshots.

"On average, only 20 to 30% of experiments a growth team runs might be successful," he says. "So that means 70 to 80% of the time you're not putting numbers on the board." The trap? Chasing small, safe bets just to avoid the sting of failure.

If you're not resilient, what I've seen happen is you end up sort of grasping for a win, which can sometimes look like making bets that are too small and too insignificant to matter.

— Christopher Miller

This philosophy requires a specific kind of PM. Miller looks for resilience above almost everything else—people who can absorb a week of failed tests and still swing for the fences on Friday. He's uninterested in growth PMs who find comfort in incremental optimization. If your primary dopamine hit comes from shipping sophisticated widgets, growth isn't for you.

Miller's second filtering mechanism: relentless curiosity. Not the polite kind that nods along in meetings, but the kind that admits ignorance out loud and refuses to move forward without answers. "Insatiable desire to understand things and a lack of fear in admitting when they don't understand things," he says. That trait—paired with a tolerance for public failure—is how HubSpot's growth team kept expanding its territory.

Pitch Your Way Into Rooms You Don't Belong In

Miller's career turning point happened at a Guinness storehouse party in Dublin. He wasn't on the guest list. He and his designer, Mariah Moscato, crashed it anyway. They ran into HubSpot's COO, who casually asked what they thought about pricing and packaging.

"Out of the blue, I think he had asked us what we thought about pricing and packaging. It was sort of one of those funny you-should-ask moments," Miller says. Mid-pint, they pitched a complete overhaul of HubSpot's pricing model. The COO invited them to present to the executive team a few weeks later.

At the time, Miller was an individual contributor PM. He had no formal authority over pricing strategy. But he and Moscato had done the work in advance—debating, sketching, and refining a contrarian point of view on their own time. When serendipity struck, they had an answer ready.

We looked at each other, we were like, uh-oh, not what we expected in terms of people welcoming maybe a contrarian point of view at that moment in time. And so we were invited into this meeting with folks that we generally don't get to spend a lot of time with to pitch this thing that swam a little bit upstream.

— Christopher Miller

HubSpot didn't adopt the full proposal. But elements of that pitch eventually shaped the company's pricing evolution. More important: Miller got invited back. He earned a seat at tables that would have remained closed if he'd waited for permission.

Scrape Your Knees Early

Miller didn't study product management in school. He stumbled into it after overhearing a startup founder say that hiring a PM would solve all their problems. Miller Googled "what is product management" and asked if he could do the job. They said yes.

"A lot of what I did was scrape my knees through the first years and a lot of painful trial and error," he says. This was before product management became a well-defined discipline with bootcamps, Substack gurus, and structured onboarding programs. There was no playbook. Just bruises.

Miller now tells aspiring PMs to prioritize structure over prestige when choosing where to break in. Smaller companies offer lower barriers to entry but often lack mentorship, training, and battle-tested leaders who've seen the movie before. "Choosing where you want to break in is almost as important as choosing that you want to break in in the first place," he says.

It's tough to field curveballs in a classroom. Thinking about who you're going to be reporting to, thinking about what's the track record of success for people at that company breaking into product management, trying to think five years in advance and work backwards—those are all important thought exercises.

— Christopher Miller

His advice for people already inside a company: volunteer. Shadow PMs. Ask how to make their day easier. Do unpaid labor in your spare time if it means getting exposure to how teams ideate, prioritize, and ship. The goal isn't to pad your resume—it's to find a sponsor willing to gamble political capital on you.

Water Coolers Build Better Strategy

Miller credits much of his early success at HubSpot to physical proximity. He'd leave his desk and wander the sales floor. He'd find people in other buildings working on unrelated problems. Those unscheduled conversations surfaced opportunities his immediate team would have missed.

"You might just discover something from having a casual conversation with someone at the water cooler," he says. "You're like, oh, that's an interesting problem. I think my team could help with that." This osmosis learning—absorbing context about how different business units connect—widened his aperture. He stopped thinking like a feature PM and started thinking like a business owner.

That muscle atrophied in remote work. Miller acknowledges the upside of hybrid: he became a new dad and could pop out between Zooms to play with his son. But the serendipity disappeared. "Everything's so scheduled and tightly scheduled, and you're bouncing from Zoom to Zoom," he says. "You've gotta be a little bit more creative in terms of the serendipitous knowledge sharing."

Miller's strategy was always to think one or two clicks above his immediate scope. He pushed for influence on decisions that weren't in his job description. He inserted himself into conversations he wasn't formally invited to. That behavior—rooted in curiosity, opportunism, and a refusal to stay in his lane—is how he went from IC PM to VP of Product for Growth and AI in seven years.

Simple Wins Over Sophisticated

Miller has little patience for complexity. The best growth PMs he's worked with are "almost ambivalent to the solution and certainly ambivalent to how complex a solution may or may not be." What matters is the outcome, not the elegance of the widget you built to get there.

This is a filtering mechanism. If you derive pride from architecting intricate systems, growth will feel hollow. If you can get excited about a one-line copy change that lifts conversion 8%, you belong.

Valuing simple solutions to really hard problems—I think if building the next super sophisticated widget is the thing that gets you out of bed in the morning, growth might not be for you.

— Christopher Miller

Miller's growth philosophy boils down to a few principles: claim orphaned problems, fail often and publicly, show up in rooms you don't belong in with answers already prepared, and never mistake a complex solution for a good one. That's how a PM who Googled his own job title helped turn a free CRM with no plan into one of the defining PLG stories in B2B software.