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Has ‘Just in Time’ Proved Itself Amid Inventory Gluts?

“Just-in-case” inventory systems were all the rage as extensive out-of-stocks arrived due to pandemic-driven supply chain disruption, but “just-in-time” strategies are now again being praised as a rebalancing of global trade has led to bloated inventories.

Just-in-time methods, developed in the 1960s and ‘70s and sometimes compared to lean manufacturing, focus on keeping inventory levels as low as possible, encouraging frequent, smaller shipments to match customer demand. Just-in-case systems, in comparison, accept higher levels of buffer products, parts, and materials to ensure there’s always enough stock to meet market demand, even in unpredictable times.

“Mega-retailers are returning to ‘just-in-time’ inventory strategies, killing the ‘just in case’ promise of the pandemic’s supply chain snarl,” said Susquehanna analyst Bascome Majors in a recent note, according to Reuters.


Majors’ analysis of 20 years of data found that inventories at the four highest-volume publicly traded importers of goods via ocean container ships in the U.S. — Walmart, Target, Home Depot, and Lowe’s — were down a combined 4% in the second quarter, the largest year-over-year decline since 2015.

Majors expects retailers’ “third-quarter inventory builds to be greater than last year’s 6% quarter-over-quarter growth, but below the 14% average for the pre-COVID years of 2015 through 2019.” The cautious stance reflects concerns that soft holiday spending will again lead to excess inventories requiring hefty promotions.

“If the consumer spending environment slows more than retailers expect, and all of a sudden you start having concerns around inventories, that’s when most retailers would probably pull the markdown levers to make sure they move through that inventory,” Brian Yarbrough, an analyst at Edward Jones, told Marketplace.


If spending doesn’t pull back, retailers will get the benefits of leaner shelves and more full-priced selling, according to Yarbrough.

In a column for Bloomberg, Brooke Sutherland, a Bloomberg Opinion columnist, wrote that while over-ordering to avoid shortages “became the mindset of the moment” during the pandemic, companies are now seeking to avoid the costs of holding excess inventory, driven by higher interest rates, storage costs, and other factors. She wrote, “There’s some debate about whether this destocking trend is a sign of weakening economic demand or merely stabilizing supply chains, but what is clear is that companies are increasingly deciding pandemic-era buffers are no longer necessary.”

Still, in a column for Harvard Business Review, Jonathan Colehower, global supply chain strategy practice Lead at UST, the California-based IT services company, said he believes supply chain managers “need more flexible, dynamic connections between trading partners” to adjust to volatile demand and unforeseen events. He believes technology can help, including artificial intelligence/machine learning technologies that can “enhance the accuracy of demand forecasting, enabling companies to anticipate market trends, fluctuations, and customer preferences with unprecedented precision.”

Technology advances can also elevate network-wide inventory visibility and improve collaboration across the supply chain to help better respond proactively to market changes. Colehower wrote, “By keeping our supply chains in a constant beta state and investing in the technology and insights needed to continually elevate them, a global supply crunch can be avoided.”

Discussion Questions

What lessons should the pandemic’s seesaw journey of out-of-stocks and over-stocks have offered around production planning and inventory management? Has the value of just-in-time approaches been validated amid retail’s lengthy destocking phase?

Poll

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Ken Morris
Trusted Member
7 months ago

Supply chain disruptions due to Covid and other factors through a multi-year wrench into the Just in Time (JIT) approach. JiT works until it doesn’t. This was the tough lesson learned during the pandemic. Hoarding plus logistics mayhem during the pandemic rendered JIT essentially useless. And when you slow factory production, it’s not quick or easy to fire it back up.

The lesson learned should be a realtime “glass pipeline” supported by Transportation Management Systems, yard management systems, and warehouse management systems working in synchronized harmony. This is the only way to identify bottlenecks and react in real time. Meanwhile, as they ramp up JIT and shorten windows all around, retailers need to keep an eagle eye on stock levels. That’s why realtime inventory and visibility are essential to success. There are many ways to reduce stockouts, but using JIT has never been one of them.

By the way, we expect AI to start playing a larger role in JIT strategies. The complexities are enormous, and AI has the best chance at figuring out workarounds for disruptions. This needs to be an end-to-end approach that ideally includes manufacturers, suppliers, DCs, online, MFCs, stores, and even the returns activity. Not easy, but it has to be done.

Bob Amster
Trusted Member
7 months ago

No one plans for catastrophes, and retail didn’t plan for COVID-19. The best the industry can do is to react quickly. If you have the tools in place, it will mitigate part of the damage inflicted by the shutdowns. If retailers do not have the tools in place, it’s a struggle that can take a long time (in retail terms) to set straight. JIT now will work to normalize inventory levels, but the damage has already been done.

Jeff Sward
Noble Member
7 months ago

JIT is a great when both the product and the data have a long shelf life. But…data has a shelf life, just like product does. So there is nothing cookie-cutter about applying JIT thinking. In apparel, seasonless basics usually behave on a predictable cycle from year to year. So this year’s data can be used to predict next years demand, and therefore long lead times in the manufacturing cycle are workable. It’s when both the data and the product have a short self life, and the supply chain Time/Action calendar requires a long lead time that JIT evaporates as a tool. This year’s data on fashion and novelty styles will not predict next year’s demand on new fashion and novelty products at the style level. You can assign a level of OTB at the category level based on trend and risk tolerance, but at the style level it turns into guessing.

JIT demands hard data predictability. Fashion and seasonality inherently mean change and guessing and lack of predictability. That’s a tough combo. That is not to say that retailers and brands can’t be timely in their execution. Retailers need to be a lot better in how they exit seasons so that the next season, or floor set, flows smoothly. Tighter buying with severe attention to seasonal conversion might at least look like JIT to the customer.

Melissa Minkow
Trusted Member
7 months ago

A more flexible, real-time inventory model is certainly the future, but the model is only as good as 1) the data it relies upon and 2) the ability to react quickly to steep fluctuations. I believe this is the end goal for most retailers, but we’re still unfortunately a bit far from getting there in a way that ensures both mass stockouts and excess aren’t happening.

Peter Charness
Trusted Member
7 months ago

No strategy or methodology lasts forever. Agility and watchfulness are the keys to success. Retailers who built high scale, low cost and rigid supply chains benefitted for decades and then saw this mode fall apart with covid. AI will certainly help with quick evaluation of a massive number of alternatives, but fundamentally understanding the macro environment and planning accordingly also is necessary. Where does one buy that crystal ball?

David Naumann
Active Member
7 months ago

Unless there is an unpredictable future incident, like the pandemic, just in time (JIT) inventory is the best approach for profitable inventory management. The number of retail chains that were stuck with excess inventory after the last holiday season has caused retailers to be more cautious to avoid over-stocking before the holidays. Whenever possible, practicing JIT inventory is the best approach and for products that can be drop-shipped, that is a great option. Drop-shipping passes the inventory risk to the manufacturer.

Paula Rosenblum
Noble Member
7 months ago

There are times when JIT JDW (Just doesn’t work). The pandemic was one of those times, and CPG’s insistence on thinking it would all be over soon resulted in the lamest out of stocks ever. It felt very soviet.

I don’t believe the “hoarding” paradigm, beyond that the first toilet paper produced was in rolls of 36. Why??? I had no choice. It was that or nothing.

JIT proved to be the devil in this situation and Just in Case would have been the better choice.

Craig Sundstrom
Craig Sundstrom
Noble Member
7 months ago

Jeez louise, are memories really that short ?? Or is it that people are really that stupid?
What was supposed to be learned was the value of flexiblity (and the foolishness of having “one size fits all” strategies). Guess it wan’t.

BrainTrust

"A more flexible, real-time inventory model is certainly the future, but the model is only as good as 1) the data it relies upon and 2) the ability to react to fluctuations."

Melissa Minkow

Director, Retail Strategy, CI&T


"No one plans for catastrophes, and retail didn’t plan for COVID-19…JIT now will work to normalize inventory levels, but the damage has already been done."

Bob Amster

Principal, Retail Technology Group


"No strategy or methodology lasts forever. Agility and watchfulness are the keys to success."

Peter Charness

Retail Strategy - UST Global