Design Decisions
Are Growth Levers.

After 20+ years designing digital products, I've arrived at one non-negotiable truth: every design decision is a business decision. The colour of a button, the copy on a modal, the order of steps in an onboarding flow, each of these is not an aesthetic preference. It is a hypothesis about human behaviour, and it has revenue attached to it.

Most product teams still treat design as a downstream function. Strategy sets direction. Engineering makes things real. Design makes things pretty. This mental model is the single biggest predictor of whether a company will struggle with retention five years from now.

The compounding nature of design quality

Think about design quality the way you think about compound interest. A product where every interaction feels considered and friction-free builds a kind of invisible trust with its users. That trust lowers churn. Lower churn improves LTV. Improved LTV means you can acquire more aggressively. More acquisition means more data. More data means better decisions. Better decisions mean better design.

The inverse is also true, and it compounds just as fast. Poor affordances, confusing navigation, and inconsistent UI patterns erode confidence quietly. Users don't leave products in dramatic protest. They drift. They open the tab less. They find a competitor whose product just feels better, even if they can't articulate why.

"Users don't leave products in dramatic protest. They drift. They open the tab less."

Three decisions that move metrics

Here are three design decisions I see consistently driving measurable business outcomes, and being systematically undervalued by the teams making them.

1. Onboarding sequence architecture

The order in which you ask users to do things during onboarding is one of the highest-leverage decisions in your entire product. Most teams default to the sequence that's technically convenient, collect email, verify, set password, fill profile. This is product logic. Effective onboarding follows the user's motivation arc: show value first, then ask for commitment.

We redesigned the onboarding flow for a SaaS client whose 7-day activation rate was 31%. By moving the value moment earlier, letting users experience the core action before completing their profile, activation climbed to 58% within one sprint. No new features. Same backend. Just a different sequence.

2. Empty state design

Empty states are the most neglected surface in any product. They appear at exactly the moment when a user's investment is lowest and their doubt is highest. A blank table with a generic "No results" message is a missed opportunity to re-motivate, re-educate, and re-commit the user to the product's value proposition.

Well-designed empty states show users what's possible, what to do next, and why it's worth the effort. They're effectively in-product marketing copy, and they should be written and designed with that level of intention.

3. Error message copy and recovery paths

Error states are where trust is most fragile. An unhelpful error message: "Something went wrong. Please try again.", tells the user they've been abandoned. It breaks the psychological contract. A well-written error message explains what happened, takes partial responsibility, and offers a clear next step. That single copy decision can be the difference between a user recovering the task and a user churning.

How to make design a growth lever in your org

The structural change required is straightforward: bring design into strategic conversations before build decisions are made. Not to make slides more beautiful. To stress-test assumptions about user behaviour before you commit engineering time to implementing them.

This is what we call Senior Design Thinking, the practice of treating every design decision as a growth hypothesis, evaluating it against user evidence, and tracking it against business outcomes. It's not a methodology you need to hire a large team to execute. It's a discipline that can be embedded in how your existing team works.

If your design process currently runs in parallel to your product strategy, rather than informing it, you're leaving growth on the table. Not because your designers aren't good. Because the decisions your designers could be influencing are being made without them.

Where to start

Run a Growth Experience Audit. Not a visual redesign. Not a new design system. A systematic diagnostic of every friction point in your core user journey, scored against revenue impact. Understand exactly which design decisions are currently costing you retention before you invest in new ones.

The most expensive design decision is the one you don't know you've already made.