Problem Statement

The Medtronic Danvers site manufactured Launcher catheters (Figure 1) using a manual batch assembly process. Productivity, measured in units per labor hour (UPLH), plateaued, and quality issues occurred periodically. The existing system lacked flow, flexibility, and predictable lead time performance.

Actions

Luis was hired to implement a Cell Operating System composed of nine tightly integrated subsystems designed to support “Everybody, Everyday Improvement.” The system had already demonstrated success at Medtronic’s Galway, Ireland, facility (Figure 2), where Luis traveled to observe the operation firsthand and gain a deeper understanding of the approach.

Tools / Methods

Luis conducted detailed time studies and designed the initial cell layout using full-scale cardboard mockups to simulate the workflow before construction of the first pilot cell. Operators were actively involved in testing and refining the design prior to implementation.

Implementing the first manufacturing cell was challenging due to resistance from portions of management and some operators who were accustomed to the existing batch process. Through collaboration, coaching, and operator involvement, Luis was able to successfully navigate these challenges and build support for the new system.

Using a combination of Heijunka, visual management, Kanban, 5S, standard work, and cellular manufacturing (Figure 3), the operation was transformed into a more stable, efficient, and predictable production system that simplified work and improved flow.

Results

• Reduced staffing requirements from 7 operators to 3 operators per cell

• Improved productivity by 40% in units per labor hour (UPLH)

• Generated approximately $1.7 million in annual labor savings

• Improved production stability and predictability

• Established lead time visibility tracked to the second

• Maintained stable first-time quality performance

Key Learning

The transformation demonstrated that operational excellence and employee engagement can improve together. Operators were no longer limited to a single repetitive task and instead became cross-trained contributors within the manufacturing system. By involving employees directly in problem-solving and continuous improvement efforts, the new system created a more flexible, collaborative, and sustainable way of working.

Problem Statement

Lean manufacturing principles apply across industries, including highly regulated defense environments. At Raytheon Technologies, engineering and manufacturing support areas suffered from poor space utilization, limited visual management, and inefficient workplace organization. Portions of the workspace contained outdated equipment, unused furniture, and deteriorated conditions that negatively affected the work environment and collaboration.

In parallel, critical defense programs require improved operational visibility and stronger daily management systems to support performance tracking and accountability.

Actions

Luis obtained a U.S. Department of Defense Secret Security Clearance while supporting mission-critical defense programs, including the Qatar Early Warning Radar (QEWR) program.

Using Lean principles and project management techniques, Luis led a major engineering workspace transformation initiative to improve floor space utilization, organization, and collaboration. The project required extensive coordination across engineering teams, facilities personnel, and union stakeholders. The redesign involved relocating heavy equipment, removing obsolete materials, reorganizing layouts, and constructing a significantly improved work environment.

The project presented substantial logistical and organizational challenges and required careful planning, sequencing, and cross-functional collaboration to successfully execute the transformation while minimizing operational disruption.

Tools / Methods

• Lean workplace organization

• Space utilization analysis

• Cross-functional project management

• Stakeholder coordination

• 5S principles

• Daily management systems

Results

• Achieved approximately 50% floor space savings through workspace redesign

• Improved collaboration and morale within engineering teams

• Created a cleaner, more organized, and more functional engineering environment

• Completed QEWR layout project on time for the first cabinet builds and within budget.

Key Learning

The project reinforced that Lean principles extend far beyond the manufacturing floor. Effective workplace design, visual management, and employee involvement can significantly improve communication, collaboration, and organizational performance in both engineering and defense environments.

The experience also demonstrated the importance of persistence, stakeholder alignment, and detailed planning when leading large-scale operational changes involving multiple groups and competing priorities.

At Fresenius Medical Care, Luis supported continuous improvement initiatives across both supply chain operations and healthcare environments. His work included distribution center operations throughout the United States, Lean capability development, visual management implementation, and operational support within clinical settings.

Supply Chain and Distribution Operations

Problem Statement

Fresenius operated a network of distribution centers across the United States that required improved operational visibility, standardized performance tracking, and identification of inefficiencies affecting productivity and labor utilization.

Actions

Luis traveled to distribution centers across the United States, including locations such as Apple Valley, California and Little Rock, Arkansas, to evaluate workflows, identify operational waste, and support continuous improvement initiatives.

Using Power BI, Luis developed visual management systems and KPI dashboards that enabled real-time productivity tracking and improved operational visibility for leadership teams. He also coached colleagues on Power BI fundamentals and helped expand internal data visualization capabilities.

In addition, Luis delivered Lean Six Sigma Yellow Belt training to employees and managers across the U.S. distribution network and conducted in-person training at Fresenius’ Guadalajara, Mexico facility to strengthen internal continuous improvement capability.

Tools / Methods

• Power BI visual management systems

• KPI dashboards

• Lean Six Sigma training

• Waste identification and process observation

• Distribution operations analysis

• Daily management systems

• Continuous improvement coaching

• Cross-site collaboration

• Gemba

Results

• Identified operational waste across 13 distribution centers

• Delivered approximately $500K in labor savings while improving throughput

• Trained more than 100 employees in Lean Six Sigma across the United States and Mexico

• Expanded internal continuous improvement capability and project participation

• Implemented Power BI visual controls, enabling real-time performance management and data-driven decision making

• Improved operational visibility across supply chain operations

Healthcare Operations Learning

During the later portion of his role, Luis supported improvement efforts within clinical and healthcare operations environments, where the realities of patient care created unique operational challenges compared to traditional manufacturing and supply chain settings.

Key Learning

The experience reinforced that successful continuous improvement requires more than technical solutions and operational tools. In healthcare environments especially, improvement efforts must align closely with frontline realities, operational capacity, and the immediate demands of patient care.

Luis gained a deeper appreciation for the importance of empathy, stakeholder engagement, and adapting improvement approaches to organizational culture and operational readiness.

At Replimune, Luis supported operational excellence initiatives within a biotechnology environment focused on advancing complex clinical and manufacturing operations. The role emphasized visual management, leadership accountability, process standardization, and operational readiness in a highly regulated industry.

Problem Statement

As operations continued to scale across multiple sites and functions, leadership teams required improved operational visibility, faster issue escalation, standardized communication processes, and stronger alignment between U.S. and U.K. operations.

The organization also needed more structured management systems to support production readiness and improve coordination across teams.

Actions 

Luis designed and implemented a Tier 4 Power BI dashboard used daily by senior leadership to improve visibility into operational KPIs, issue tracking, and organizational performance. The system simplified complex operational data into actionable visual management tools supporting faster communication and decision-making. 

In addition, Luis established and launched a structured Gemba Walk program that increased leadership engagement with frontline operations and strengthened accountability around issue identification and escalation. Luis also supported the implementation of Tiered Management systems and standardized operational processes across teams in the United States and the United Kingdom to improve alignment and reduce variability.

Tools / Methods

• Power BI visual management systems

• Tiered accountability systems

• KPI development and operational metrics

• Gemba Walk implementation

• Daily management systems

• Process standardization

• Kaizen

• Continuous improvement coaching

Results

• Developed a Tier 4 Power BI dashboard utilized daily by senior leadership

• Improved operational visibility and accelerated issue escalation and communication

• Established a structured Gemba Walk program adopted by site leadership

• Strengthened leadership accountability and frontline engagement

• Supported implementation of Tiered Management systems to improve production readiness

• Standardized operational processes across U.S. and U.K. teams to improve global alignment and reduce variability

Key Learning

The experience reinforced the importance of operational visibility, early risk identification, and alignment within highly regulated industries. In complex regulatory environments, sustainable success depends on technical capability, surfacing problems early, communicating transparently, and aligning operational systems with evolving external requirements and stakeholder expectations.

The role strengthened Luis’ understanding of how visual management, leadership engagement, and structured escalation systems can support organizational learning and operational readiness in rapidly changing environments.

Luis Cárdenas began his professional career at Johnson & Johnson within the Ethicon Endo-Surgery division, supporting high-volume medical device manufacturing operations in Ciudad Juárez, Mexico.

The experience provided foundational exposure to global manufacturing systems, supplier quality management, process improvement, and Six Sigma methodologies that would later shape his career in operational excellence and continuous improvement.

Actions

Luis was responsible for supporting the TR45 Platform cartridge product line manufactured through plastic injection molding processes. His responsibilities included supplier coordination, quality support, process monitoring, and collaboration with cross-functional teams to maintain production continuity and product consistency.

The role included international travel to Shenzhen, China and Singapore to strengthen supplier relationships and support global manufacturing operations.

During his time at Johnson & Johnson, Luis earned both his Lean Six Sigma Green Belt and Black Belt certifications. Training included practical application of DMAIC methodologies, root cause analysis, statistical problem solving, and Design of Experiments (DOE), including hands-on simulation exercises used to demonstrate process variation and optimization principles.

Tools / Methods

• Lean Six Sigma

• DMAIC methodology

• Design of Experiments (DOE)

• Root cause analysis

• Supplier quality management

• Statistical process analysis

• Injection molding process support

• Cross-functional collaboration

Key Learning

Johnson & Johnson provided the foundation for Luis’ career in continuous improvement and operational excellence. The experience demonstrated the importance of disciplined problem solving, data-driven decision making, and collaboration within complex global manufacturing systems.

Beyond technical development, the role also created lasting personal and professional relationships that shaped his perspective on teamwork, leadership, and the human side of manufacturing environments.

The experience ultimately marked the beginning of a new chapter that later brought Luis to the United States, where he continued building his career in operational excellence and Lean leadership.

At Biogen, Luis supported global supply chain transformation initiatives focused on operational excellence, cross-functional alignment, and continuous improvement across U.S. and European operations.

The role required collaboration across multiple business functions to improve supply chain performance, strengthen operational reliability, and support strategic transformation efforts within a complex global biotech environment.

Problem Statement

Global supply chain operations required improved cross-functional coordination, stronger operational alignment, and identification of strategic improvement opportunities to support business growth and operational reliability.

In addition, teams required greater continuous improvement capability and standardized approaches to problem solving and process optimization.

Actions

Luis led and facilitated global supply chain transformation initiatives across sites in the United States and Switzerland, aligning seven cross-functional teams around a unified operational excellence roadmap.

During a Kaizen event in Zürich, Switzerland, Luis worked directly with cross-functional stakeholders to map current-state processes, design future-state workflows, and implement improvements focused on reducing waste, improving cycle time, and increasing supply chain reliability.

In addition to leading improvement initiatives, Luis managed and coached two direct reports to strengthen their continuous improvement and problem-solving capabilities. He also delivered Lean Six Sigma Green Belt training to support the development of a broader culture of operational excellence within the organization.

Tools / Methods

• Kaizen facilitation

• Current-state and future-state mapping

• Lean Six Sigma

• Cross-functional alignment

• Supply chain transformation

• Process optimization

• Continuous improvement coaching

• Operational excellence road mapping

Results

• Led global supply chain transformation initiatives across U.S. and Swiss operations

• Aligned seven cross-functional teams to a unified operational excellence roadmap

• Identified and quantified more than $23 million in supply chain improvement opportunities

• Enabled executive prioritization and strategic investment decision-making

• Facilitated Kaizen events that improved cycle time, reduced waste, and strengthened supply chain reliability

• Developed internal continuous improvement capability through Green Belt training and employee coaching

• Received the CEO Top Talent Award (2022) for exceptional business impact and transformation leadership

Key Learning

The experience reinforced the importance of cross-functional alignment and structured problem solving when leading transformation initiatives in complex global organizations. Sustainable operational improvements required not only technical analysis, but also the ability to build consensus, align stakeholders, and develop internal continuous improvement capability across teams and regions.