Business Performance

How an expanding product portfolio can stall growth when process optimization is missing

Krystian Meler

6 Min Read

A real-world manufacturing case showing how rapid product expansion overwhelmed production capacity, despite strong customer demand. It explores the operational challenges behind stalled sales growth and how better processes and closer coordination between sales and manufacturing helped turn things around.

Expanding a product portfolio is often seen as a sign of innovation, market responsiveness and business growth. More products should mean more opportunities to sell.

But what happens when production cannot keep up?

Without corresponding changes to manufacturing processes, a growing product range can introduce complexity, reduce efficiency and ultimately limit sales.

A real manufacturing case illustrates how a company with strong market demand found its growth constrained not by customers, but by its own operations — and how aligning production processes with business strategy helped turn things around.

When more products stopped meaning more sales

The company had a portfolio of established, successful products with consistent demand over several years. Its sales team saw opportunities to grow but increasingly struggled to fulfil customer orders.

The problem wasn’t a lack of interest in the products. It was the factory’s ability to deliver them.

Meanwhile, the product portfolio continued to expand:

  • 25 new collections were introduced in 2023.

  • 12 additional collections followed in early 2024.

  • No older products were withdrawn from the portfolio.

No older products were withdrawn from the portfolio.

Some of the company’s best-selling products had maintained strong demand for 2–3 years, yet their production competed for capacity with an increasing number of new and lower-volume models.

The result was a growing disconnect between what the sales team could sell and what the factory could reliably produce.

What the production data revealed

A closer examination of manufacturing operations showed that the expanding portfolio was fundamentally changing how the factory worked.

  1. From predictable batches to fragmented production

As product variety increased, manufacturing shifted from relatively predictable production runs toward a high-mix, low-volume environment.

The share of single-set production batches increased from 14% to 25% of total production volume.

Smaller batches meant more frequent setups, machine adjustments and changes between products. Each additional change consumed time and resources, making production planning more difficult and extending lead times.

  1. More products, more material complexity

The growing number of models introduced additional fabrics, components and SKUs.

This increased the complexity of material planning, storage and inventory management. Maintaining the right materials in the right quantities became more difficult, contributing to shortages, delays and higher inventory requirements.

  1. Too many products competing for the same capacity

New collections continued to enter production without a corresponding reduction in older models.

High-demand products were competing for manufacturing resources with lower-volume, less profitable items.

Instead of concentrating capacity where it could generate the greatest business value, the factory was spreading its resources across an increasingly fragmented portfolio.

  1. The hidden cost of variety

Product complexity extended beyond production planning.

Every additional variation created demands on quality control, logistics, assembly and material handling.

Individually, these complications could appear manageable. Together, they reduced the factory’s ability to meet delivery commitments.

The company had products customers wanted to buy. What it lacked was a production system capable of supporting its sales ambitions.

Why process optimization became a business priority

The growing product portfolio was no longer simply an operational challenge.

It had become a constraint on the company’s commercial performance.

The sales team was identifying opportunities, but manufacturing bottlenecks prevented the business from converting that demand into reliable deliveries and additional revenue.

Continuing to introduce new products without addressing the underlying production model would only increase the pressure.

The solution required more than improving individual manufacturing operations. It meant reconsidering how the product portfolio, production planning and business priorities worked together.

How the company addressed the problem

The improvement work focused on three connected areas.

  1. Rationalizing the product portfolio

The company introduced annual portfolio reviews to identify and phase out underperforming products.

Rather than continually developing entirely new collections, greater emphasis was placed on derivatives of existing designs.

This helped reduce unnecessary complexity while preserving opportunities to respond to customer demand.

  1. Adapting manufacturing to the product mix

Production planning was adjusted to better accommodate high-mix, low-volume manufacturing.

Material flows were streamlined to support smaller orders without unnecessarily extending lead times.

The production team also worked more closely with R&D to consider manufacturability earlier in the product development process.

The objective was not simply to produce faster, but to create a manufacturing system better suited to the company’s actual product portfolio.

  1. Bringing sales and production together

Joint workshops helped sales and production teams understand each other’s constraints and priorities.

Operational data was used to identify high-value opportunities and support decisions about which products deserved greater focus.

This helped establish a more coordinated approach to portfolio decisions, production planning and customer commitments.

The results

By aligning its product portfolio with manufacturing capabilities, the company improved operational efficiency and removed constraints that had been limiting sales growth.

  • Reduced production lead times, allowing the factory to respond more effectively to customer demand.

  • Increased manufacturing capacity through better production planning and streamlined material flows.

  • A more focused product portfolio, with greater emphasis on high-value products and the gradual removal of underperforming models.

  • Improved collaboration between sales and production, helping the business avoid delivery failures caused by disconnected priorities.

  • Sales targets achieved, as the company became better equipped to capitalize on existing market opportunities.

The improvements helped shift the business away from uncontrolled portfolio expansion toward a more balanced approach, where product development and manufacturing capabilities supported the same commercial objectives.

Lessons learned

  • More products don’t automatically create more growth. Every additional model introduces operational complexity. Without sufficient production flexibility, expanding a portfolio can reduce the capacity available for established, high-demand products.

  • Manufacturing processes must reflect the actual product mix. A production system built around larger, predictable batches may struggle when orders become smaller and more varied. Planning methods and material flows need to evolve accordingly.

  • Portfolio management is a business-wide responsibility. Decisions about introducing or retiring products affect purchasing, inventory, manufacturing, logistics and ultimately customer delivery performance.

  • Sales and production must work toward shared priorities. Commercial opportunities only translate into revenue when the business has the operational capability to fulfil them.

Key takeaways

This case demonstrates how product portfolio expansion can become a barrier to growth when manufacturing processes fail to keep pace.

Despite strong customer demand, the company struggled to meet delivery commitments because its growing product range had introduced complexity that its production system was not equipped to manage.

By rationalizing the portfolio, adapting manufacturing processes and improving collaboration between sales and production, the business reduced inefficiencies, improved its ability to deliver and achieved its sales targets.

The central lesson is that growth doesn’t always require more products. Sometimes, it requires making better decisions about the products you already have — and ensuring your operations can deliver them efficiently.

About the author

I’m Krystian Meler, an industrial executive and founder of KM Change Management.

I’ve spent my career working with manufacturing businesses, leading teams and tackling challenges that rarely have straightforward answers. I write about what I’ve learned along the way, the decisions that shape business performance and the things I believe deserve a closer look.

Krystian Meler

Industrial executive / founder

Connect on Linkedin ↗

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