Rapid fulfillment on an unprecedented scale: interview with Amazon.com's Dave Clark
Amazon.com has become a dominant online retailer through a combination of vast product offerings and speedy order fulfillment. The secret, says Dave Clark, is in the people and the technology.
Peter Bradley is an award-winning career journalist with more than three decades of experience in both newspapers and national business magazines. His credentials include seven years as the transportation and supply chain editor at Purchasing Magazine and six years as the chief editor of Logistics Management.
On Black Friday this holiday season, e-commerce behemoth Amazon.com had 29 million visitors, according to a report in Forbes magazine. On Cyber Monday, Amazon led all other e-commerce businesses. While overall e-commerce sales enjoyed a healthy 17-percent jump over 2011 Cyber-Monday levels, Amazon's sales for the day climbed 42 percent, according to Businessweek.
Those millions of visits mean millions of orders, and getting those orders out the door for delivery to customers as soon as the next day—or in some cases, the same day—is an enormous undertaking for the company's fulfillment operations. Add rapid growth to the mix, and the challenge becomes mind-boggling. Yet it's one that the company meets thousands of times a day.
Overseeing that vast fulfillment operation is Dave Clark, vice president of global customer fulfillment for the online retailing giant. He is responsible for the company's supply chain, transportation, and fulfillment networks in North America, Japan, and Europe.
Clark, who holds an M.B.A. from the University of Tennessee and a B.A. from Auburn University, has been with Amazon through most of its growth. He joined the company in 1999, four years after its founding and two years after it went public, at a time when it was rapidly expanding the number of fulfillment centers it operates. Since then, he has held several key roles at Amazon, including general manager of a fulfillment center in Pennsylvania and regional director of operations. He was promoted to his current position in January 2012.
Editorial Director Peter Bradley talked with Clark at the Council of Supply Chain Management Professionals' Annual Global Conference in October about Amazon's hyperefficient fulfillment machine.
Q: There's been a lot of speculation about upcoming changes in Amazon's fulfillment strategy. Can you tell me what's ahead? Will same-day fulfillment be part of Amazon's future? A: We have had some incredible growth over the years and continue to have that. We expanded the network substantially. There are 75 fulfillment centers (FCs) around the world. In the United States, we continue to expand as well. We target development of FCs based on a couple of things, but as with everything we do, it starts with the customer. So we begin by asking questions like: Where are the customers? What is customer demand? We love to have our fulfillment centers as close as possible to customers.
Our priority is around improving the experience of our Amazon Prime customers. [Subscribers to Prime service get free or low-cost shipping as well as other benefits for a flat annual fee.] Prime customers now have a suite of opportunities, ranging from free two-day and discounted one-day shipping to video, Kindle, and visual library benefits. Our goal is to make that Prime experience even better. We already do same-day in some places in the United States as the opportunity presents, but our focus is really on the Prime service today.
Q: You've spent a lot of money on technology, both software and hardware like Kiva's order fulfillment robots [Kiva was acquired by Amazon in May 2012]. How does all this technology fit into your strategic business plans? A: We are super excited about the Kiva team. They are a great group of people and a great technology platform. Right now, we are still working through exactly how we want to deploy it across Amazon.
We really do essentially no third-party software solutions. We do everything in house because so much of what we do is very specialized and because all the decisions we make in technology are based on what we want to do for the customer.
Q: What are the criteria for determining where you're going to invest technology dollars? A: It is really a simple function. What is the best thing for the customer? What is going to provide the most benefit to the customer by either enabling greater selection on the platform, through enabling a faster delivery, or being able to lower prices?
I'm always amazed at the selection that is on the site and how much customers buy across that full selection of product. We always get questions relative to why we carry the tail [items with relatively low demand] because the typical distribution model wants to get rid of the tail. Operators don't like the tail. It is painful. It is highly variant—the cost to store it, what have you. But customers like the tail. It turns out selection is something people really care about, and so we leverage a great group of people in technology to find solutions to be able to deal with it.
Q: Amazon customers, like me, have come to expect next-day or second-day delivery as routine. What does it take in the design of both your DC operations and your logistics network to make that possible without breaking the bank? A: This goes back to the technology that you talked about. We are very focused on a couple of things. One, hiring and developing the best industry talent there is. We've had a long history of recruiting great people and great technologists, whether it be physical engineering, software engineering, or supply chain engineering types of folks. The other is the technology backbone that allows us to manage the inventory placement, order allocation, and facility design for the supply chain network.
Q: Let's talk a little more about the technology. Your customers interface with some of your technology directly, but a lot of it is not visible to consumers. Tell me something about how you bring all that together. A: They all have to work together, right? It is again part of why we do everything ourselves in house, because if you are trying to optimize for the customer and not each discrete portion of the operation, then everything has to be able to fit together. The system is looking at your order vs. the thousands of other orders placed around the same time or currently in the system and saying, OK, what is the best way to optimize this pool of orders and distribute it across a nationwide network? And to do it at the lowest cost that meets the standard of speed we need to achieve? Every step of the process, we're constantly running another optimization around the best place to allocate that order and the best transportation method to allocate that order and the best package type to allocate that order.
Technology is so ingrained in the way we think about solving problems and the way we think about creating innovations for customers that we really don't have an IT department. What we have are technology teams embedded in business teams, so they really work as one unit. Every team is thinking about innovation on a regular basis and how to leverage technology for innovation.
Q: Interesting. If it ain't broke, fix it anyway. A: If it ain't broke, it's probably just because you don't know it's broken.
Q: You've had an insider's view of many of the things that have enabled Amazon's growth. What are some of the major elements that make for a successful supply chain? A: There are two big things I would point to. One is hiring and developing the best. In fact, that's one of our core principles at Amazon—hiring and developing the best talent. We have done it for a long time and continue to do it because getting the right analytic and leadership firepower in your leadership team is critical to being successful.
The second part is integrating technology into the daily life of all the teams. There is no team that I know of in operations that isn't in some way connected to technology or embedded with technology teams. I think these are two things that I've seen over my time at Amazon that have really allowed us to be successful.
Artificial intelligence (AI) and data science were hot business topics in 2024 and will remain on the front burner in 2025, according to recent research published in AI in Action, a series of technology-focused columns in the MIT Sloan Management Review.
In Five Trends in AI and Data Science for 2025, researchers Tom Davenport and Randy Bean outline ways in which AI and our data-driven culture will continue to shape the business landscape in the coming year. The information comes from a range of recent AI-focused research projects, including the 2025 AI & Data Leadership Executive Benchmark Survey, an annual survey of data, analytics, and AI executives conducted by Bean’s educational firm, Data & AI Leadership Exchange.
The five trends range from the promise of agentic AI to the struggle over which C-suite role should oversee data and AI responsibilities. At a glance, they reveal that:
Leaders will grapple with both the promise and hype around agentic AI. Agentic AI—which handles tasks independently—is on the rise, in the form of generative AI bots that can perform some content-creation tasks. But the authors say it will be a while before such tools can handle major tasks—like make a travel reservation or conduct a banking transaction.
The time has come to measure results from generative AI experiments. The authors say very few companies are carefully measuring productivity gains from AI projects—particularly when it comes to figuring out what their knowledge-based workers are doing with the freed-up time those projects provide. Doing so is vital to profiting from AI investments.
The reality about data-driven culture sets in. The authors found that 92% of survey respondents feel that cultural and change management challenges are the primary barriers to becoming data- and AI-driven—indicating that the shift to AI is about much more than just the technology.
Unstructured data is important again. The ability to apply Generative AI tools to manage unstructured data—such as text, images, and video—is putting a renewed focus on getting all that data into shape, which takes a whole lot of human effort. As the authors explain “organizations need to pick the best examples of each document type, tag or graph the content, and get it loaded into the system.” And many companies simply aren’t there yet.
Who should run data and AI? Expect continued struggle. Should these roles be concentrated on the business or tech side of the organization? Opinions differ, and as the roles themselves continue to evolve, the authors say companies should expect to continue to wrestle with responsibilities and reporting structures.
Shippers today are praising an 11th-hour contract agreement that has averted the threat of a strike by dockworkers at East and Gulf coast ports that could have frozen container imports and exports as soon as January 16.
The agreement came late last night between the International Longshoremen’s Association (ILA) representing some 45,000 workers and the United States Maritime Alliance (USMX) that includes the operators of port facilities up and down the coast.
Details of the new agreement on those issues have not yet been made public, but in the meantime, retailers and manufacturers are heaving sighs of relief that trade flows will continue.
“Providing certainty with a new contract and avoiding further disruptions is paramount to ensure retail goods arrive in a timely manner for consumers. The agreement will also pave the way for much-needed modernization efforts, which are essential for future growth at these ports and the overall resiliency of our nation’s supply chain,” Gold said.
The next step in the process is for both sides to ratify the tentative agreement, so negotiators have agreed to keep those details private in the meantime, according to identical statements released by the ILA and the USMX. In their joint statement, the groups called the six-year deal a “win-win,” saying: “This agreement protects current ILA jobs and establishes a framework for implementing technologies that will create more jobs while modernizing East and Gulf coasts ports – making them safer and more efficient, and creating the capacity they need to keep our supply chains strong. This is a win-win agreement that creates ILA jobs, supports American consumers and businesses, and keeps the American economy the key hub of the global marketplace.”
The breakthrough hints at broader supply chain trends, which will focus on the tension between operational efficiency and workforce job protection, not just at ports but across other sectors as well, according to a statement from Judah Levine, head of research at Freightos, a freight booking and payment platform. Port automation was the major sticking point leading up to this agreement, as the USMX pushed for technologies to make ports more efficient, while the ILA opposed automation or semi-automation that could threaten jobs.
"This is a six-year détente in the tech-versus-labor tug-of-war at U.S. ports," Levine said. “Automation remains a lightning rod—and likely one we’ll see in other industries—but this deal suggests a cautious path forward."
Editor's note: This story was revised on January 9 to include additional input from the ILA, USMX, and Freightos.
Logistics industry growth slowed in December due to a seasonal wind-down of inventory and following one of the busiest holiday shopping seasons on record, according to the latest Logistics Managers’ Index (LMI) report, released this week.
The monthly LMI was 57.3 in December, down more than a percentage point from November’s reading of 58.4. Despite the slowdown, economic activity across the industry continued to expand, as an LMI reading above 50 indicates growth and a reading below 50 indicates contraction.
The LMI researchers said the monthly conditions were largely due to seasonal drawdowns in inventory levels—and the associated costs of holding them—at the retail level. The LMI’s Inventory Levels index registered 50, falling from 56.1 in November. That reduction also affected warehousing capacity, which slowed but remained in expansion mode: The LMI’s warehousing capacity index fell 7 points to a reading of 61.6.
December’s results reflect a continued trend toward more typical industry growth patterns following recent years of volatility—and they point to a successful peak holiday season as well.
“Retailers were clearly correct in their bet to stock [up] on goods ahead of the holiday season,” the LMI researchers wrote in their monthly report. “Holiday sales from November until Christmas Eve were up 3.8% year-over-year according to Mastercard. This was largely driven by a 6.7% increase in e-commerce sales, although in-person spending was up 2.9% as well.”
And those results came during a compressed peak shopping cycle.
“The increase in spending came despite the shorter holiday season due to the late Thanksgiving,” the researchers also wrote, citing National Retail Federation (NRF) estimates that U.S. shoppers spent just short of a trillion dollars in November and December, making it the busiest holiday season of all time.
The LMI is a monthly survey of logistics managers from across the country. It tracks industry growth overall and across eight areas: inventory levels and costs; warehousing capacity, utilization, and prices; and transportation capacity, utilization, and prices. The report is released monthly by researchers from Arizona State University, Colorado State University, Rochester Institute of Technology, Rutgers University, and the University of Nevada, Reno, in conjunction with the Council of Supply Chain Management Professionals (CSCMP).
The overall national industrial real estate vacancy rate edged higher in the fourth quarter, although it still remains well below pre-pandemic levels, according to an analysis by Cushman & Wakefield.
Vacancy rates shrunk during the pandemic to historically low levels as e-commerce sales—and demand for warehouse space—boomed in response to massive numbers of people working and living from home. That frantic pace is now cooling off but real estate demand remains elevated from a long-term perspective.
“We've witnessed an uptick among firms looking to lease larger buildings to support their omnichannel fulfillment strategies and maintain inventory for their e-commerce, wholesale, and retail stock. This trend is not just about space, but about efficiency and customer satisfaction,” Jason Tolliver, President, Logistics & Industrial Services, said in a release. “Meanwhile, we're also seeing a flurry of activity to support forward-deployed stock models, a strategy that keeps products closer to the market they serve and where customers order them, promising quicker deliveries and happier customers.“
The latest figures show that industrial vacancy is likely nearing its peak for this cooling cycle in the coming quarters, Cushman & Wakefield analysts said.
Compared to the third quarter, the vacancy rate climbed 20 basis points to 6.7%, but that level was still 30 basis points below the 10-year, pre-pandemic average. Likewise, overall net absorption in the fourth quarter—a term for the amount of newly developed property leased by clients—measured 36.8 million square feet, up from the 33.3 million square feet recorded in the third quarter, but down 20% on a year-over-year basis.
In step with those statistics, real estate developers slowed their plans to erect more buildings. New construction deliveries continued to decelerate for the second straight quarter. Just 85.3 million square feet of new industrial product was completed in the fourth quarter, down 8% quarter-over-quarter and 48% versus one year ago.
Likewise, only four geographic markets saw more than 20 million square feet of completions year-to-date, compared to 10 markets in 2023. Meanwhile, as construction starts remained tempered overall, the under-development pipeline has continued to thin out, dropping by 36% annually to its lowest level (290.5 million square feet) since the third quarter of 2018.
Despite the dip in demand last quarter, the market for industrial space remains relatively healthy, Cushman & Wakefield said.
“After a year of hesitancy, logistics is entering a new, sustained growth phase,” Tolliver said. “Corporate capital is being deployed to optimize supply chains, diversify networks, and minimize potential risks. What's particularly encouraging is the proactive approach of retailers, wholesalers, and 3PLs, who are not just reacting to the market, but shaping it. 2025 will be a year characterized by this bias for action.”
Under terms of the deal, Sick and Endress+Hauser will each hold 50% of a joint venture called "Endress+Hauser SICK GmbH+Co. KG," which will strengthen the development and production of analyzer and gas flow meter technologies. According to Sick, its gas flow meters make it possible to switch to low-emission and non-fossil energy sources, for example, and the process analyzers allow reliable monitoring of emissions.
As part of the partnership, the product solutions manufactured together will now be marketed by Endress+Hauser, allowing customers to use a broader product portfolio distributed from a single source via that company’s global sales centers.
Under terms of the contract between the two companies—which was signed in the summer of 2024— around 800 Sick employees located in 42 countries will transfer to Endress+Hauser, including workers in the global sales and service units of Sick’s “Cleaner Industries” division.
“This partnership is a perfect match,” Peter Selders, CEO of the Endress+Hauser Group, said in a release. “It creates new opportunities for growth and development, particularly in the sustainable transformation of the process industry. By joining forces, we offer added value to our customers. Our combined efforts will make us faster and ultimately more successful than if we acted alone. In this case, one and one equals more than two.”
According to Sick, the move means that its current customers will continue to find familiar Sick contacts available at Endress+Hauser for consulting, sales, and service of process automation solutions. The company says this approach allows it to focus on its core business of factory and logistics automation to meet global demand for automation and digitalization.
Sick says its core business has always been in factory and logistics automation, which accounts for more than 80% of sales, and this area remains unaffected by the new joint venture. In Sick’s view, automation is crucial for industrial companies to secure their productivity despite limited resources. And Sick’s sensor solutions are a critical part of industrial automation, which increases productivity through artificial intelligence and the digital networking of production and supply chains.