Tactical insights for first-time founders to outsmart the burn, the churn & the breakdown.

Hey Founder,

Most days, building a company means negotiating with constraints.

Some are real: cash in the bank, market demand, the number of hours your team can work.

Most aren't. They're assumptions. Industry norms. Rules of thumb that started as someone's opinion and slowly became everyone's reality.
"Customers won't pay that."
"Hiring great people takes months."
"Enterprise buyers need a 90-day pilot."
Until someone asks: why?

Steven Bartlett calls these paper walls. From a distance they look solid. Up close, they're often just conventions nobody has challenged in a while.

Sooner or later, part of your job becomes spotting those walls and pushing through them.

Then it becomes hiring people who do the same.

That's what this issue is about.

Let's dive in. 

The obvious thing is often right in front of you. That’s the problem with paper walls: after a while, nobody remembers they’re paper.

A paper wall is a boundary you treat as fixed without ever checking if it is.

It’s like a weird family habit you never question until someone visits and asks, “Why do you do that?”
Your grandma did it, then your mom did it, then you did it

In a company, it’s the lead time your vendor swears is fixed, the salary band your “best candidate would never accept” before anyone actually asks, or the three‑approval process for a $40 refund.

It’s the belief that dragging a suitcase with wheels would “hurt masculine pride” until Bernard Sadow put wheels on one and made lifting heavy bags at airports look ridiculous.

For years, fashion accepted that if you wanted to sell a shirt in September, you had to decide what it looked like in January. The “rule” was that design, manufacturing, and delivery took 6–9 months.

Then Zara asked the annoying question: why?

They compressed that cycle to roughly 15 days.

Toyota did the same in manufacturing. For decades, factories treated continuous production as sacred. The line must keep moving. Defects could be fixed later.

Taiichi Ohno challenged that. He stopped the line, exposed problems earlier, and helped create what became lean manufacturing.

The pattern is always the same.

A norm becomes a rule.
A rule becomes “reality.”
Then someone asks why, and the wall starts to tear.

You don’t need to reinvent fashion or manufacturing to feel this. The small paper walls inside your company compound too: pricing rules, hiring assumptions, approval processes, customer expectations, sales cycles.

Most of them are not physics.

They’re just preferences nobody has challenged in a while.  

The best founders spend an almost irrational amount of time hiring.

Brian Chesky says great founders spend 40–50% of their time recruiting. Steven Bartlett says roughly half.

That sounds extreme until you realise what they're actually buying: people who don't treat "that's just how it works" as an answer.

In Bartlett's culture test, there's a question he loves:
“A supplier says they can't deliver in time for an event six weeks away. What do you do?”

Most people pick one of two options:
Scale back.
Push the date.

Only 7% ask a third question:
Why does it take six weeks?

Those are the people who dismantle fake constraints.

The founders who escape their constraints tend to do two things well:

The rest of this issue is about finding those people and building a company where challenging assumptions becomes normal, not exceptional. 

Give them a real constraint, like Bartlett’s supplier example, and watch their first instinct.

Most people hear “we can’t” and start planning around it.
The 7% ask: “Why not?”

Not because they’re difficult, but because they want to know whether the wall is real before they organise around it.

Everyone says they “challenge assumptions.” The 7% can tell you exactly when they did it.

Ask: “Tell me about a time you were told something couldn’t be done and you didn’t accept it. What happened?”

A strong answer includes the rule, who resisted, what they tried, and what changed afterwards.
A weak answer sounds like a slogan: “I pushed back and we figured it out.”

You’re not testing whether they were always right. You’re testing whether their instinct is to check if the constraint is real.

Paper-wall crushers hold conviction without ego.

In the interview, wait until they give a good answer, then push back:
“I don’t think that would work here.”
“Legal would never allow that.”
“That sounds too risky.”

The best people don’t collapse or get defensive. They stay engaged. They’ll say something like: “I still like the direction, but I’d adjust it for that risk.”

That’s the signal: they can hold the wall and the pushback at the same time. 

If you are still the main source of “why do we do it this way?” in year three, it means you built a team of very polite wall‑defenders.

Real leverage is when the leaders you hired push through walls you never even saw. Otherwise, you don't just inherit their labor. You inherit their assumptions. And soon enough, you will be scaling a company with an operating manual built on invisible constraints.

Afterall the game is actually one when not just one but hundreds of tiny constraints are strategically removed over time. 

The most stubborn walls are usually built from something that worked.

A sales process improves conversion from 10% to 25%.
Everyone celebrates. Nobody touches it again.

But what if the real ceiling was 35%?

The wall isn't failure. It's success that became untouchable. And the people most likely to defend it are often the ones who built it.

Including you. 

Many of those walls have the founder's fingerprints all over them, which is why nobody rushes to challenge them.

So go first. At your next leadership meeting, ask: "What are we still doing only because it worked once?"

Success has a habit of fossilising into process.

A periodic reset is how you stop yesterday's breakthrough from becoming tomorrow's bottleneck. 

Your job is simple: challenge constraints and hire people who do the same.

Look at last week and tally the hours spent on:

Everything else is maintenance.

If hiring and wall-pushing aren't taking up a meaningful chunk of your week, your calendar and your job description don't match. 

The next time you hear, "We can't" or "That's just how it works," ask:

Real constraints survive all three. Paper walls usually don't. 

Pick one interview this week and score candidates on three traits:

Make "constraint-pushing" its own line on the scorecard, not a fuzzy part of culture fit. 

The hardest walls to see are usually the ones you built.

At your next leadership meeting, ask: "What are we doing only because I want it that way?" Then listen.

When someone names a real one, don't defend it. Test a small version of their idea within a week.

Do that visibly and you've taught the company something important: Even the founder's walls can be challenged.  

A founder asked me:

Build the muscles that define the company. Buy the ones that keep it running.

If a skill shapes what you sell, who you sell to, what you charge, or who you hire, that's founder territory. You don't need to be the best in the world, but you do need to understand it well enough that experts can't sell you nonsense.

If it's too specialized, well-defined, or low-leverage for you to master - tax, payroll, routine legal work, infrastructure - you should buy it as soon as you can afford to.

A useful rule: If your ignorance could quietly reshape the product, business model, or culture, learn it.
If not, delegate it.

One more thing: not every capability needs to be permanent.

Sometimes the right answer is a specialist for 12–18 months to get you through a phase, build a function, or solve a specific problem.

Think rented engine, not permanent organ.

The real question isn't in-house versus outsourced.
It's: Where do I refuse to be ignorant? 

Send it my way, just hit reply.

Make yourself more resourceful with: 

Before you go…

Any founder can challenge a constraint. The advantage comes when you've built a company full of people who do it without being asked.

While everyone else is organizing around the same assumptions, your team is quietly testing them.
One wall at a time.

That’s the moat.

See you next Thursday,

— Mariya

Hit reply and let me know. I read every single one (for real).

Hey, I’m Mariya, a startup CFO and founder of FounderFirst. After 10 years working alongside founders at early and growth-stage startups, I know how tough it is to make the right calls when resources are tight and the stakes are high. I started this newsletter to share the practical playbook I wish every founder had from day one, packed with lessons I’ve learned (and mistakes I’ve made) helping teams scale.

Mariya Valeva

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