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David Guggina is executive vice president of supply chain operations for Walmart U.S. He has responsibility for leading the company’s distribution centers, fulfillment centers and other areas in support of the Walmart fulfillment platform.

David previously served as senior vice president, innovation and automation, where he and his team were responsible for leading the strategic implementation of automation technology in our supply chain facilities and innovative delivery capabilities. Since joining the company, he has built and served many agile teams who have implemented simplified processes resulting in better customer service and lower costs within the supply chain.

Prior to joining Walmart in 2018, David worked at Amazon and became a leader at their first all-apparel fulfillment center. Within Amazon’s fulfillment operations, he held a breadth of leadership positions including in inbound, outbound, quality control and on subject matter expert and customer returns teams. Before joining Amazon, David worked at Anheuser-Bush on warehouse optimization and canning operations.

David is passionate about empowering teams to simplify and standardize processes and find new ways to improve the customer and associate experience.

David is a graduate of Purdue University with a Bachelor of Science in Accounting and Business Management.

Donna Warton is the Corporate VP of Microsoft Devices Supply Chain and Sustainability. She is responsible for demand and supply planning, channel management, and fulfillment and logistics for devices and accessories including Surface, Surface Hub, HoloLens, Xbox and PC hardware and software. Her responsibilities are to plan and execute the device business, which includes currently $9 billion in revenue and 50 million units across 75 markets. Her objectives are to ensure customers get the devices they need through demand planning and flawless channel management and fulfillment and logistics; to optimize the device financial performance through product life cycle planning; to manage cash and costs through material and capacity planning; and ultimately, to make it easy to do business with Microsoft through digitized operations.

Prior to joining Microsoft, Donna was VP of Global Operations Planning for Dell, responsible for Sales and Operations Planning, and Supply Chain Planning, for over 100,000 items, Finished Good Inventory Management, Product Transition Management and Operations Performance Management. During her time there, she implemented the transformation of Dell’s famous configure-to-order supply chain to a segmented supply chain model which included standard-offer SKUs. The change in operations led to improved margin for the company, unleased new value propositions, significantly improved customer lead times and saved millions on freight costs, as well as reducing operations planning costs by over 40%.

Before joining Dell, Donna led the Global Supply Chain for Mettler-Toledo International, a $2 billion publicly traded precision balance and scale manufacturer for laboratory, retail and industrial markets, for such customers as Starbucks. She was responsible for Global Procurement, Logistics, Supplier Quality, and Supply Chain Operations. While at Mettler, Donna created global category procurement managers and low-cost country sourcing strategies to improve product margins.

Prior to Mettler-Toledo, Donna spent 16 years at Motorola, where her last role was as Corporate Vice President of Global Operations and Supply Chain for Motorola’s Mobile Device business. Her responsibilities included customer operations, order-to-cash fulfillment, inventory management, supply planning, sales and operation planning, on-time delivery and value-added fulfillment services. During her time there, she ran the supply chain that launched RAZR, which at its peak was shipping 100 million units a year. She accomplished many firsts for the mobile phone industry, including color-product offers which started with the Pink RAZR, outsourced China manufacturing, and improved profitability from supply chain services, like direct-to-store delivery, to operator and retail customers.

Donna began her career in finance and accounting, and spent 15 years supporting various functions including sales and marketing, engineering, manufacturing, merger and acquisitions, and corporate finance. Donna was an early lover of tech, hence her 25+ years in the industry. She has a passion for business and building great teams. In 2013, she won the Inspiring Leader Award at Dell’s companywide annual leadership meeting. She was the executive sponsor for the MS Operations Women’s leadership program, and supports Girlstart, a non-for-profit company that delivers science, technology, engineering and math programs to girls in central Texas. Donna holds a B.S. in accounting from Northern Illinois University and an MBA from Loyola University. She is married and has two grown daughters.

Greg Smith is EVP, Global Operations and Supply Chain at Medtronic.

Prior to his current role, Greg served as EVP, Supply Chain, for Walmart U.S responsible for all product flow and distribution centers, as well as responsibility for all domestic and global ocean transportation functions. He also served as Senior Vice President of Global Operations at The Goodyear Tire and Rubber Company. With more than 30 years of supply chain and operations experience, Greg has transformed manufacturing, procurement and logistics programs at companies like Goodyear, ConAgra Foods, United Signature Foods, VDK Frozen Foods and Quaker Oats.

Greg earned his bachelor’s degree in finance from the University of Tennessee, Knoxville. He currently serves on the Global Supply Chain and College of Business Advisory Boards at the University of Tennessee.

Hau Lee is the Thoma Professor of Operations, Information and Technology, Emeritus, at the Graduate School of Business, Stanford University. He was also the co-director of the Value Chain Innovation Initiative at Stanford. He is a world leader in supply chain management and has published widely. He was chairman of SCM World before it became part of Gartner. He was a co-founder of DemandTec, a price optimization software company that went public on the NASDAQ in 2007, has consulted extensively in industry, and is now on the board of several public and private companies.

Jackie Sturm is Vice President and General Manager of Intel’s multibillion dollar Global Supply Management Group. She is responsible for all of Intel’s strategic sourcing and procurement worldwide, delivering on solutions that meet stringent objectives across a complex and diverse set of businesses, technologies and supply ecosystems. Her organization is frequently recognized for high performance, as a seven-time winner of Intel’s prestigious Intel Quality and Achievement Awards, and most recently cited by Gartner as No. 5 in its Top 25 Global Supply Chain. Jackie is a member of Intel’s Ethics and Compliance Oversight Committee, and directs the Supply Chain Environmental and Social Governance Program, which includes Intel’s first-mover Conflict Minerals initiative.

She has been at Intel since 1993 and has held various positions in the company, including in the Technology Manufacturing Group, NAND Systems Group, Intel Capital, New Business Group and Intel Communications Group. Prior to Intel, she worked for Hewlett-Packard and Apple Inc. She is a passionate advocate for manufacturing and engineering as economic foundations for global competitiveness.

John Kern is Senior Vice President of Supply Chain Operations at Cisco. He leads a global organization responsible for accelerating innovation, enabling profitable growth, and delivering an unrivaled customer experience. His functional accountabilities include new product introduction, product lifecycle management, sourcing and supplier management, planning, manufacturing, logistics and quality.

Since joining Cisco in 2003, he has held various leadership positions in the supply chain. Previously, he managed Product Operations, Supplier Management and Quality Operations, the key interfaces between the supply chain, Cisco's product development team and the global supply base. Prior to this, he managed the Global Supplier Management organization, responsible for enabling Cisco innovation through effective sourcing and supplier development.

Prior to Cisco, he worked in the networking and semiconductor industries, including seven years at Texas Instruments in sales management and business development roles. He also served six years in the Army National Guard as a field artillery officer.

John is also passionate about improving childhood education, with a focus on reducing gaps in science, technology, engineering and math (STEM). He shows his commitment and helps realize Cisco's STEM corporate social responsibility initiatives by serving on the board of two nonprofits: Resource Area For Teaching (RAFT), supporting the next generation of thinkers and innovators through hands-on learning, and the Krause Center for Innovation (KCI), a learning center for K-12 teachers that emphasizes technology integration and STEM curriculum.

He holds a B.S. in electrical engineering from the University of Notre Dame.

Kathy Wengel is Executive Vice President and Chief Global Supply Chain Officer for Johnson & Johnson, and a member of the company’s Executive Committee. A strong developer of globally diverse teams, she leads a supply chain organization that brings more than 350,000 healthcare products to consumers and patients around the world, and fulfills more than 100,000 customer orders every day.

As Chief Operating Officer of Lenovo's Infrastructure Solutions Group, Renée is responsible for internal operations and efficiency, cost, expense, transformation, supply chain & procurement with a mission to become our customers’ most trusted smart infrastructure partner.

Renée joined Lenovo in June 2017 as the VP of Global Supply Chain within the Infrastructure Solutions Group. She has been instrumental in the transformation of the Data Center Group business by driving new technologies such as blockchain and AI into daily operations, placing supply chain at the forefront of cloud customer relationships and instilling a talent focused on a people first culture. In Renée's tenure as the leader, the Global Supply Chain organization has delivered a 26% efficiency to the bottom line, automated over 9,400 human actions, and has improved customer experience to an all-time high of 96% on time delivery.

Prior to joining Lenovo, Renée retired from IBM in June 2017 with more than 25+ years of executive leadership experience. She joined IBM in Poughkeepsie, New York and throughout her career she built skills in multiple areas of operations, procurement, demand planning, sales operations, manufacturing, fulfillment, and finance. She was key to driving the integration of pre and post sales execution operations for IBM, while driving operational excellence from quote to cash for IBM. As the Vice President of Global Operations for Enterprise Services, Renée led a global organization of over 7,500 employees, covering a quote to cash supply chain for software, hardware, services and solutions, in over 50 different countries and over $80B in revenue.

Outside of Lenovo, Renée is an executive board member of Supply Chain Leaders in Action (SCLA), an association of Distribution Business Management consisting of executive leaders seeking strategic ideas and thought leadership to improve supply chain and logistical operations. She is also a board member of Project 44, a world leading Advanced Visibility Platform™ for shippers and logistics service providers.

Renée holds a Bachelor of Science in Finance from Babson College in Wellesley, Massachusetts. She is happily married with two sons, and lives in Moneta, Virginia with her husband and two dogs, Oakley (Golden Retriever) and Maddie (Nova Scotia Duck Tolling Retriever).

In her role at Kimberly-Clark, Tamera has global responsibility for the Enterprise Supply Chain’s end-to-end manufacturing and distribution footprint as well as the functional support areas, including procurement, quality operations, sustainability, occupational health and safety, strategy, and capital engineering. Prior to joining Kimberly-Clark in 2022, Tamera served as Senior Vice President of manufacturing and supply chain for 3M, where she led the end-to-end supply chain in the U.S. and Canada across all its business groups and markets.