The most important role in a hardware startup isn't the CEO.

The most important role in a hardware startup isn't the CEO. It isn't the CTO, the VP of Engineering, or the head of Sales.

It's the Product Manager.

If a startup is fortunate, it has a crackerjack engineering team that will design the product exactly to the requirements, on time, at the target cost point. But most of those engineers rarely talk to customers. They build what the PRD tells them to build.

And in hardware, the PRD has to be right.

SaaS companies can implement continuous deployment — ship fast, get feedback, iterate overnight. That doesn't exist when PCBs need to be redesigned, laid out, fabricated, assembled, and tested. When packaging needs to be retooled. When software integration has to catch up to a new board revision. Hardware development cycles are measured in quarters, not days.

Startups have short runways. Their capital is the most expensive they will ever raise. A wrong PRD doesn't just mean a pivot — it can mean a very expensive delay or outright failure.

That PRD is the single most important job of the Product Manager. And in an early-stage startup, the founder is usually the Product Manager.

Which is exactly why the founder has to keep her eye on the ball. Stay maniacally focused on the customer. And as the company grows, she cannot afford the distraction of building the operational machine around the product.

That part needs to be delegated.