Steve joined Walmart in 2007 and in 2010 was promoted to Senior Vice President leading our U.S. Snacks and Beverage business. In 2013, he moved to São Paulo to become our Chief Merchandising Officer for Walmart Brazil where he demonstrated the ability to quickly adapt to and serve new and emerging markets.

In 2015 Steve moved to San Bruno, CA to become our Chief Merchant for Walmart.com where he led the Buying, Planning, Pricing and Replenishment teams.

 Relocated back to Bentonville in 2019 as SVP of Merchandising Operations and in early 2020 took on his new role leading Inventory flow and optimization across Stores and eCommerce.

 Prior to Walmart, Steve held leadership positions in Marketing at Abbott Laboratories, Molson Coors Brewing Co. and Procter & Gamble in the US and Canada.

 Mr. Breen received a Bachelor of Business Administration degree from York University in Toronto.

Tracy Rosser has over 25 years of senior level supply chain experience, including transportation, distribution, and retail store operations experience. Tracy currently serves as executive vice president of operations for Transplace where he has responsibility for the transportation management operations. Prior to Transplace, Tracy served as senior vice president of transportation and supply chain for Walmart. While in this role, he had responsibility for all domestic transportation, transportation procurement, the Walmart private fleet, transportation strategy and support and global transportation. During his time in this role, he also had responsibility for last mile and supply chain services. Tracy’s prior role was senior vice president, store operations, Walmart U.S. where he was responsible for store operations for stores in the southeast U.S. Additionally, since joining Walmart in 1997, Tracy served as vice president of transportation, director of transportation, general manager of the Laurens, South Carolina fashion and general merchandise distribution centers, regional transportation manager with the private fleet over the western U.S., manager of backhaul administration and general transportation manager of the Sutherland, Virginia transportation office. 

 Prior to joining Walmart, Tracy spent nine years in the truckload transportation industry holding positions in sales, marketing, and operations.

 Tracy holds a bachelor’s degree in Business from the University of Alabama and an MBA from Tulane University.

Alex Scott is an Assistant Professor of Supply Chain Management at Michigan State University.  His research focuses on supply chain policy, transportation safety, transportation market dynamics, and shipper-carrier governance mechanisms.  His research has appeared in Production and Operations Management, Journal of Operations Management, Journal of Business Logistics, Transportation Science, and Transportation Research Part E, among others.  Prior to academia, Dr. Scott spent a decade in industry, including work for a large transportation services provider, a large third-party logistics provider, and several years as a consultant, where he consulted in several different countries and industries.

Shelley Simpson is the Chief Commercial Officer and Executive Vice President of People and Human Resources for J.B. Hunt Transport Services, Inc.  She joined the Company as an hourly customer service representative and currently serves as Chief Commercial Officer and Executive Vice President of People and Human Resources. She leads the strategic direction of marketing, sales, customer experience, and external product development, including J.B. Hunt 360. Shelley is also responsible for commercializing services internationally and oversees the Company’s efforts to create a more inclusive culture and work environment.

Mike is responsible for founding Plug and Play's global Supply Chain & Logistics vertical. The program is based in Silicon Valley, Northwest Arkansas, Hamburg, and Shanghai, and is in partnership with 50+ industry-leading corporate partners like ArcelorMittal, BNSF, Railway, Canadian National Railway, DHL, ExxonMobil, FedEx, Geodis, Japan Post, JB Hunt, Kansas City Southern Railroad, Panasonic, Prologis, Ryder, Shell, TJX, Tyson Foods, Union
Pacific Railroad, United States Postal Service, Wallenius Wilhemsen, Walmart, and Yamato.
This program is responsible for accelerating and investing in startups in the areas of analytics, AI, machine learning, augmented reality, smart warehousing, blockchain for supply chain, customer support solutions, inventory management, IoT sensors, drones, last mile delivery, disruption of the freight brokerage model, end-to-end supply chain optimization, autonomous driving, predictive analytics for demand planning, and transportation management systems.
Plug and Play is was a seed investor in companies like Dropbox, Lending Club, PayPal, Rappi, and over 1000 startups across all verticals.