Jan 4, 2026
8 min read
Decision Speed Is the Hidden KPI Every Founder Ignores
Most founders optimize for revenue or burn. The metric that quietly decides your trajectory is decision speed. Here's a four-step framework I use.
By Cathryn Lavery
Most founders track revenue, burn rate, and shipping velocity. They build dashboards for all three. But the metric that quietly determines whether any of those numbers actually move is one almost nobody measures: decision speed.
I learned this the hard way. When I was buying BestSelf back from private equity, the entire deal nearly collapsed twice because of timing. Not because we lacked information, but because the window for action was measured in days, not quarters. Every hour I spent deliberating was an hour the other side could change terms, find another buyer, or simply lose patience. That experience rewired how I think about decisions permanently. Speed wasn’t reckless — it was the only thing that kept the deal alive.
Since then, I’ve started treating decision speed as an operating KPI, the same way I track cash flow or customer acquisition cost. The results have been disproportionate to the effort.
Why most founders are slow
There are three patterns I see constantly, and I’ve been guilty of all of them.
Fear of the wrong choice. This is the obvious one. You convince yourself that making the wrong call is worse than making no call. But indecision is itself a decision — it’s a decision to stay exactly where you are while the market moves. The cost of a wrong reversible decision is almost always lower than the cost of no decision at all.
Wanting consensus. Somewhere along the way, founders absorbed the idea that good leadership means getting everyone aligned before acting. Sometimes it does. But most of the time, consensus-seeking is a form of risk diffusion. You’re not looking for the best answer — you’re looking for cover if the answer turns out to be wrong. I’ve watched entire weeks evaporate while a team of four tried to agree on a landing page headline.
Perfectionism dressed up as diligence. This is the sneakiest one. You tell yourself you’re being thorough, that you just need one more data point, one more customer interview, one more competitive analysis. But past a certain threshold, additional information doesn’t improve the decision. It just delays it. You already know enough. You’re stalling.
Reversible vs. irreversible: the only distinction that matters
Jeff Bezos popularized this framing, and it’s the single most useful mental model I use as a founder. Every decision falls into one of two categories:
Reversible decisions are two-way doors. You walk through, you see what’s on the other side, and if you don’t like it, you walk back. These should be made fast — often by one person, with minimal process. Changing your homepage copy. Testing a new pricing tier. Trying a different ad creative. Switching project management tools. Hiring a contractor for a trial period. The downside of getting these wrong is measured in hours or dollars, not existential risk.
Irreversible decisions are one-way doors. Once you’re through, you can’t easily come back. Signing a five-year lease. Taking on a co-founder. Selling equity. Shutting down a product line. These deserve deliberation, multiple perspectives, and real analysis. But even here, “deliberation” doesn’t mean “indefinite delay.” It means a focused, time-boxed process with a clear deadline.
The problem is that most founders treat reversible decisions like they’re irreversible. They bring the same weight, the same process, the same anxiety to choosing a new email platform as they would to choosing a business partner. That’s where speed dies.
My rule: if you can undo it in under a week for less than a few thousand dollars, it’s reversible. Treat it that way.
The four-step framework
I use a simple system for this, and it works whether you’re a solo operator or running a team of fifty.
1. Classify the decision
Before anything else, ask: is this reversible or irreversible? Be honest, but lean toward “reversible.” Most things are more reversible than they feel in the moment.
Examples from running BestSelf:
- Reversible: Changing the price of a product by $5. Updating the homepage layout. Running a new type of Facebook ad. Switching from one shipping carrier to another. Adding a new section to the weekly newsletter.
- Irreversible: Signing a manufacturing contract with minimum order quantities. Bringing on a full-time executive. Accepting an acquisition offer. Discontinuing a flagship product.
When I catch myself agonizing over something that belongs in the first column, I know I’m wasting time.
2. Set a deadline
For reversible decisions, the deadline should be measured in hours, not days. If the decision can be undone, there is no reason it should take a week.
I give myself a hard rule: reversible decisions get resolved within the same working day they surface. If someone on my team brings me a question about email subject lines at 10 a.m., we’re not scheduling a meeting for Thursday to discuss it. We’re picking one by lunch and testing it.
For irreversible decisions, I allow more time — but I still set a deadline. “We’ll make a final call on this by Friday at noon” is infinitely more useful than “Let’s keep thinking about it.” Open-ended deliberation is where decisions go to die.
3. Document the bet
This is the part most people skip, and it’s the part that makes the whole system actually improve over time.
For every non-trivial decision, write two sentences:
“We’re betting that X because Y.”
That’s it. Not a memo. Not a Notion doc with fourteen headers. Two sentences.
“We’re betting that raising the journal price by $3 will not meaningfully impact conversion because our customers are value-driven, not price-sensitive.”
“We’re betting that switching to a weekly newsletter cadence will increase open rates because our audience prefers fewer, higher-quality sends.”
Writing it down does two things. First, it forces clarity. If you can’t articulate the bet in two sentences, you don’t actually understand the decision you’re making. Second, it creates a record you can review later to calibrate your judgment.
4. Review outcomes weekly
Every week, during my Sunday system review, I look back at the bets from the previous week. Which ones played out? Which ones didn’t? What did I learn?
This is where decision speed actually compounds. Over time, you start to notice patterns. You learn which types of decisions you consistently overthink. You learn which categories of bets tend to pay off. You develop faster instincts — not because you’re being reckless, but because you’ve built a feedback loop between action and outcome.
Most founders never build this loop. They make decisions, move on, and never revisit whether the decision was right. So they never get faster. Their judgment stays static while the business gets more complex.
What fast decision-making looks like in practice
Here’s what this actually looks like in the day-to-day of running a company.
Pricing. We test price changes in real time. No three-week analysis. No cross-functional committee. We pick a number that seems right based on what we know, run it for two weeks, and look at the data. If it works, we keep it. If it doesn’t, we revert. Total cost of being wrong: two weeks of data. Total cost of deliberating for a month: a month of not knowing.
Hiring. For contractors and freelancers, I make the call within 48 hours of the final conversation. For full-time roles, I give myself a week after final interviews. Not because I need a week to think, but because irreversible decisions deserve a beat of reflection. What I don’t do is schedule five rounds of interviews over six weeks and then agonize for another two.
Product changes. If a customer emails us about a confusing part of the website, and the fix is straightforward, it ships that day. Not next sprint. Not “added to the backlog.” Today. The bias should always be toward action when the downside is small.
The compounding advantage
Here’s what most people miss about decision speed: it compounds.
If you make decisions 30% faster than your competitor, you don’t just save 30% more time. You run 30% more experiments. You learn 30% more about your market. You course-correct 30% sooner when something isn’t working. Over a year, that gap becomes enormous. Over five years, it’s the difference between a company that adapts and one that calcifies.
Slow decision-making doesn’t just cost you time. It costs you learning. And in a business where the landscape changes every quarter, learning speed is survival speed.
The founders I respect most aren’t the ones who make the best decisions. They’re the ones who make good-enough decisions fast, learn from the outcomes, and adjust. They treat the business as a series of bets, not a series of commitments. That posture — loose grip, fast hands — is what actually builds durable companies.
I wrote more about the hidden costs of every decision in The Costs of Decisions, which goes deeper into why even small choices carry weight when you’re running a company. And if you want to see the weekly review system where I actually process all of this, that’s in my Sunday System.
Fast doesn’t mean sloppy. It means clarity about what matters, a short loop between action and learning, and the willingness to be wrong in exchange for being early. That’s the KPI nobody tracks. Start tracking it.
Written by
Cathryn Lavery
Cathryn built and sold BestSelf, bought it back from private equity, and still runs it. She writes Little Might so she doesn't have to keep these lessons in her head.