To accurately reduce cost of goods sold (COGS), analyze total cost, including assembly labor, not just individual component prices. A more expensive prefabricated part, like a $1,500 wiring harness, can slash total costs by eliminating $6,000 worth of manual labor time, but requires looking beyond departmental budgets.

Roelof Botha claims "cost is the secret of Silicon Valley." While product innovation gets the attention, relentless cost reduction is the bigger driver of success. It democratizes technology and provides a true competitive advantage, unlike simply lowering prices.

Beyond saving developer hours, the true value of AI-driven efficiency lies in reducing rework. This frees up capacity for new revenue-generating projects. Frame the value not just as time saved, but as the business value of features you can now build instead (cost of delay).

Modeling in process development can drastically reduce experiments, which is valuable for speed. However, even a small, single-digit percentage yield improvement in manufacturing provides a far greater long-term financial return. The gain is realized on every single batch produced throughout the product's entire commercial lifecycle, making it the most impactful area for modeling.

Design for Excellence goes beyond just manufacturing costs. Consider the entire product lifecycle, including serviceability. A design that's easy to assemble but difficult to service in the field (like using a blind screw on a replaceable part) increases the total cost of ownership and harms the customer experience.

Before pursuing complex strategies, the most effective starting point for value creation in smaller businesses is a deep dive into cost accounting. This foundational work, often neglected due to its difficulty, reveals precisely where margins are made and destroyed, which then informs all subsequent strategic decisions.

Treat your product and engineering teams as stewards of the company's most precious capital: their time. A capital allocation framework forces leadership to ask if this "investment" is being spent on the initiatives with the highest strategic return, not just fulfilling requests.

Elon Musk uses this metric to identify manufacturing inefficiencies. A high ratio between the cost of a finished part and its raw materials—a high 'idiot index'—signals a significant opportunity for cost reduction through smarter, first-principles-based manufacturing techniques.

Zipline's 50% cost reduction for its next-gen aircraft wasn't just from supply chain optimization. The primary driver was a design philosophy focused on eliminating components entirely ("the best part is no part"), which also improves reliability.