Lean â Peeling Back the Curtain
Lean business practices fight waste and unnecessary processes in an organization. An appropriately lean culture excels at spotting waste and getting rid of it. Toyota, an acknowledged champion of âcontinuous improvement,â identifies seven ways to help workers detect waste in their procedures by watching out for: 1) âoverproduction,â 2) errors, 3) needless âmovement,â 4) too much inventory, 5) âoverprocessing,â 6) âwaiting timeâ and 7) âunnecessary motion.â The trick is to turn an honest eye to your work and identify what adds value and what doesnât. If you wouldnât feel comfortable asking a customer to pay for a certain action or step, question seriously whether thereâs a good reason you continue to include it.
âThe ultimate goal of a lean transformation is to build a learning culture that solves customer problems forever.â
Many proponents of lean principles look to the Toyota Production System as the true definition of lean. You wonât find a lean manual or guidelines at Toyota, but you will find people focused on constant progress. Toyota blends its never-ending search for excellence with ârespect for people,â who are the engines of that goal.
âLean is a transformation that builds toward a continuous improvement culture, not a âprogramâ thatâs designed to make tactical gains.â
Bringing about lean transformation in your organization requires a certain set of tools and a specific kind of leadership. The tools are varied, work at different levels of the organization and satisfy diverse objectives. For example, senior executives with an âenterprise-level perspectiveâ analyze how lean processes can potentially improve a firmâs entire value chain.
âIt is what you do with your value-adding costs â your people â in transforming your material or information that determines your value-added effectiveness and competitiveness.â
In the area of quality improvements, use the process called poka-yoke, Japanese for âmistake proofing,â to eliminate errors; if youâve ever tried to put a diesel gas nozzle into your ordinary carâs gas tank opening, you will find that it doesnât fit. That is one way designers made the carâs fueling mistake proof. In addition, available lean toolkits can help you improve operating âflow and lead time, cost and productivity, human development,â and âproduct or service development.â
Just Enough Measurement
If your company measures too many variables, you might feel that these metrics stifle change and improvement. Toyotaâs approach to measurement â called âTrue North metricsâ â can help you avoid the âmeasurement straitjacketâ and find a steady rate of progress. These metrics are meant to guide a company in perpetuity, so their standards are high â âzero defects,â or as close to True North as possible. The reach for perfection can act as an antidote to âbig company disease,â the overconfident self-satisfaction that often marks large firms. When you relentlessly work on âclosing the gapâ between where you are and where you ultimately want to be, you keep your company moving. The four True North metrics are:
- âQuality improvementâ â How clients view a companyâs quality positively correlates with return on investment: the higher the quality, the higher the firmâs financial reward.
- âDelivery/lead time/flow improvementâ â âTime cycle compressionâ can help your company better serve its clients and improve in the process. In doctorsâ offices and hospitals, patients place great value on reduced waiting times. Englandâs Royal Navy was able to keep 70% more jets in the air after it improved lean processes and âflowâ on the HMS Illustrious, one of its aircraft carriers.
- âCost/productivity improvementâ â Getting your suppliers to work with you on a lean transformation to reduce costs may be difficult, so focus instead on your other primary expense â your own people. If you can help your current employees become more efficient instead of increasing the number of staff you hire, you are on your way to a considerable advantage.
- âHuman developmentâ â To foster lean thinking, educate your staffers on their tools and processes, while encouraging their buy-in. Consider a âjishukin event,â a âweeklong focused effortâ involving everyone in an âimprovement team.â A lean culture begins with helping people â especially senior management â âsee waste.â
âBehind all True North metrics is the concept of people studying their work and improving it on a regular basis.â
Improving performance in each category of True North metrics will lead to gains in the financials that firms frequently use to measure progress. For example, everyone on your team should understand how improvements in quality or delivery would improve your sales figures.
âValue Stream Analysisâ Meets Kaizen
Whatever your company sells, the stages between âcustomer requestâ and âcustomer fulfillmentâ make up your firmâs value stream. And within your value stream thereâs always room for improvement. To begin, walk through the value stream, start to finish, to uncover and diagnose its âinitial state.â Check for clunky processes, and note the tasks that seem to be missing, along with the work steps you never knew existed. You may find that people in different parts of the value stream have no idea what is happening before or after their contribution; that creates unnecessary âreworkâ along the way. Throughout your assessment, carry the True North metrics with you. Look for alignment and divergence, delays and blockages. Observe âvalue-addedâ and ânonvalue-added steps.â If you perform your value stream analysis well, it will help you chronicle waste and identify areas where you can enhance the flow.
âBuilding a culture of continuous improvement to support a lean transformation is a big job. As Toyota says, âWe build people before we build carsâ.â
When you finish documenting and eliminating the waste you found, begin the process again â and do it five more times. âThe Rule of 5Xâ isnât as exaggerated as it may seem: As you work through existing processes and remove waste, more inefficiencies will surface. This habit of ârestudyâ will help you build toward continuous improvement.
âIn the early stages of lean, learning to see waste by the senior leadership is by far the most important impact of a good value stream analysis.â
For even more dramatic results, consider an intensive, five-day âkaizen event,â during which teams attack a particular part of a value stream âand both redesign it and implement the new process during the same week.â Such events are a way to lift employees out of âfirefightingâ mode. Tending to everyday work demands can distract people from real âroot cause improvement.â Use a coach experienced in lean tools and techniques to guide your kaizen week, which should become a regular event.
Lean Tactics and Strategies
As you seek to implement lean culture on a daily basis, make some tactical changes:
- Create âweeklong improvement teamsâ â Each team should consist of a leader (from the part of the value stream under consideration), a few frontline workers, someone who understands kaizen, and one or two individuals (perhaps from the executive level, or even a supplier) who are there just to learn.
- Promote âfollow-upâ â If you want lean to thrive, someone needs to keep an eye on âevent follow-upâ while everyone else is busy handling day-to-day work. Choose strong candidates who can spot and fix issues, collaborate effectively and communicate well with others.
- âRedeployâ top talent â As kaizen events improve your firmâs processes and reduce staffing needs, move your best employees to other departments that might benefit from their skills.
âGovernance is the key issue with lean...The majority of the organization must change the way it looks at work.â
Strategically, if you want to create a truly lean organization, you have to change everything about the way your company does business. To gain and maintain momentum start with the âgovernanceâ level. Your companyâs leaders donât need to know everything about lean, but they must âimmerseâ themselves in the workplace deeply enough to understand the kinds of waste that exist there. Without total buy-in from your executives, getting full results from your lean endeavors will be difficult, if not impossible. Enlist their support for generating âadditional customer value on a continuing basis.â
âLean learning is hands-on learning that comes from the personal struggle of applying new concepts and tools to your workplace, and then learning from this struggle.â
Develop a âguiding coalitionâ of higher-ups to help spearhead the necessary changes. A coalition is a particularly effective lean driver because it spreads the responsibility and elicits âthe input of multiple senior leadersâ; it also can overcome doubters and resisters, of whom there will be plenty.
âYou really cannot overcommunicate when undertaking any large change in your organization.â
Coalition members should first figure out how they will learn what they need to know through their âimmersion experience.â Then they should examine the highest priority value stream where they want to apply lean precepts and then identify an âimprovement focusâ where they will spend their time and energy. The guiding coalition might use a sensei, or coach, to facilitate its work. Plan to assign several workers from the value stream under consideration to provide continuing support. This rank-and-file involvement in promulgating lean principles will ensure the improvement planâs implementation.
âYou will find it necessary to require certain types and levels of engagement in order for individuals to begin...their own journey of new learning.â
Think also about how you will handle the âantibodiesâ in your organization â those who tend to resist change, especially efforts such as lean that ask people to reconsider some of their core notions about work. Just like antibodies in the human body, organizational antibodies will strongly combat what they perceive as a threat to the status quo, and they will grow in numbers.
âAntibodies exist in every organization and will automatically resist anything as radical as a lean transformation.â
How you manage this struggle is particularly important if the antibodies are, as often is the case, ârespected and long-term members of the organization.â Recognize that at the outset of a lean project, everyone may question the change, but only antibodies, once theyâve heard the reasons for lean, will continue to buck the trend. Deal with recalcitrant people by clearly drawing a line in the sand: Explain why lean is critical to the companyâs future, and ask the reluctant staffers to participate in the transformational process. Make it clear that if they have a true problem with the change, or cannot adapt to it, they might be better suited for work elsewhere.
âBuilding a Lean Cultureâ
Lean principles and tools can thrive only in a corporate culture that adapts well to change. Lean must become the ânew way of running the enterpriseâ; if not, all the training in the world wonât make a difference. Take a page from Toyota, which follows these eight âbuilding blocksâ of a lean culture:
- âServe the customerâ â Everything that happens in your organization should center on the client. Reducing waste and inefficiency makes serving customers profitable.
- Pursue âactive honestyâ â Lean thinking demands honesty, even when the truth hurts. This âcourageous integrityâ encourages the team to speak out candidly.
- âDecide carefully, implement quicklyâ â Lean practice suggests that finding âroot causesâ of problems takes time, but once you have discovered where the origins lie, work to choose and implement a solution swiftly.
- âCandidly admit imperfectionsâ â In lean transformations, humility is a core virtue that allows people to recognize when operations or processes could use improvement.
- âSpeak honestly and with deep respectâ â Being straightforward but respectful with team members about the strengths and weaknesses of their work is a critical lean management skill.
- âGo see and listen to learnâ â New graduates hired at Toyota spend their first day at a plant confined to a small space in the middle of the floor. Managers then quiz the newcomers on what theyâve seen and how they would improve the work site.
- âDeliver on meaningful challengesâ â To motivate employees, challenge them to strive for truly ambitious goals. While they might not reach all their objectives, they could find âsolutions that no one can envision today.â
- âBe a mentorâ â At Toyota, your teamâs performance determines your promotion. A true commitment to lean transformation requires mentoring and developing your staff members.
âMost senior leaders feel that others expect them to know the answers, but with lean, the key to success is to know the questions and be willing to pursue the answers diligently.â
To hasten your firmâs lean transformation, provide your leaders with âpersonal experienceâ in the way work happens at your company. Donât let theory and tools obscure the value of hands-on knowledge. Seeing waste in their own organization will motivate executives to act. Then, after they receive some training in lean concepts, take the next step: Turn your leadersâ attention to âdaily improvementâ and ultimately to amassing a legitimate âdeep knowledgeâ of lean practices.
âExperience has shown that the impact of learning to see waste â personally â and then realizing how much waste could be removed in a week is transformational.â