Executive Summary
Original Equipment Manufacturers (OEMs) make sourcing decisions based on three critical factors: quality, cost, and lead time. While many suppliers compete on quality and cost, lead time remains an underutilized strategic lever. In an era of rapid innovation, shifting supply chains, and increasing demand for customization, OEMs are prioritizing throughput and responsiveness more than ever. This presents a unique opportunity for engineering and manufacturing service companies to differentiate by optimizing lead time, particularly in new product development (NPD).
By adopting Lean Product Development (LPD) methodologies—such as collaborative cross-functional teams, front-loaded planning, set-based concurrent engineering, and visual management tools—companies can reduce time-to-market, improve design quality, and lower development risk. This paper outlines how service providers can integrate these practices to become the go-to innovation partners for OEMs.
The OEM Buying Criteria: The Unspoken Power of Lead Time
Most sourcing professionals in the OEM space evaluate suppliers through the lens of:
- Quality – Consistent delivery to spec and reliability in performance.
- Cost – Competitive pricing, value engineering, and efficiency.
- Lead Time – Speed to deliver new designs, prototypes, or production-scale parts.
While quality and cost are expected, lead time is often the tiebreaker—especially in new product launches or during supply chain disruptions. Accelerated lead times can:
- Increase market share through faster launches.
- Reduce the cost of delay (COD).
- Build agility into OEM product pipelines.
Companies that optimize throughput in their NPD process will win more business and become irreplaceable partners.
The Case for Throughput in New Product Development
Throughput refers to the rate at which a company can turn customer concepts into engineered, manufacturable, and deliverable solutions. In NPD, high throughput means:
- Faster prototyping and validation cycles.
- Early detection and resolution of design flaws.
- Seamless transition from engineering to production.
However, traditional NPD processes are linear, siloed, and slow. To gain a throughput advantage, service providers must embrace Lean Product Development.
Lean Product Development: Core Principles and Tools
Lean Product Development (LPD), adapted from Lean manufacturing, targets waste in the design process and maximizes value delivered to the customer. Key principles include:
1. Cross-Functional Collaborative Teams
- Teams composed of engineering, manufacturing, quality, sourcing, and even the customer.
- Enables real-time decision-making and alignment across disciplines.
- Example: Toyota’s Chief Engineer model integrates voice-of-customer and cross-functional accountability from day one.
2. Front-Loaded Development
- Investing time and effort early in the project to explore multiple design paths and reduce downstream changes.
- Uses tools like Quality Function Deployment (QFD) and Design for Manufacturability (DFM).
- Result: Reduces costly rework and accelerates later stages.
3. Set-Based Concurrent Engineering
- Multiple design alternatives are developed in parallel, gradually converging toward the optimal solution.
- Contrasts with the single-solution linear approach.
- Promotes innovation while reducing late-stage design changes.
4. Value Stream Mapping for NPD
- Mapping the design process to identify bottlenecks and non-value-added steps.
- Optimizing handoffs, approvals, and decision loops to improve flow.
5. A3 Thinking and Visual Management
- Structured problem-solving and communication tools to enhance clarity.
- Visual project boards, progress indicators, and checklists create transparency and accountability.
6. Rapid Learning Cycles
- Iterative build-test-learn loops for prototypes.
- Digital simulation and fast-turn CNC or additive manufacturing tools support this.
- Example: GE Appliances used agile NPD methods and rapid prototyping to reduce appliance development times by 30%.
Why OEMs Care
OEMs are increasingly under pressure to innovate faster, reduce design risk, and launch differentiated products. Their ideal partner:
- Understands the pressure to launch ahead of competitors.
- Can engineer and prototype quickly without sacrificing quality.
- Has a repeatable, documented development process.
- Offers feedback and iteration as a service, not just output.
By embedding LPD principles, a manufacturing service company becomes more than a supplier—it becomes a development partner.
Our Approach at Big Rocks Engineering
At Big Rocks, we embed Lean Product Development across all project phases:
- Discovery workshops to define specifications and constraints with OEMs.
- Integrated project teams to eliminate delays and miscommunication.
- Parallel development streams for tooling, prototyping, and test validation.
- Digital dashboards and gated reviews to maintain velocity and alignment.
We measure our success not just by delivery, but by speed, learning, and partnership.
Conclusion: Lead Time is the Differentiator of the Future
In a competitive sourcing environment, it’s not enough to offer high quality and low cost. OEMs want partners who move fast and learn faster. Lean Product Development gives engineering and manufacturing service providers the tools to stand out—not just as vendors, but as innovation accelerators.
Lead time isn’t a constraint. It’s a strategic advantage.
References
- Ward, Allen and Sobek, Durward. Lean Product and Process Development. Lean Enterprise Institute, 2014.
- Morgan, James. High-Performance Product Development: Lean, Agile, and Set-Based Design.
- Womack, James, and Jones, Daniel. Lean Thinking: Banish Waste and Create Wealth in Your Corporation.
- Reinertsen, Donald. The Principles of Product Development Flow: Second Generation Lean Product Development.




