After the shell shock of the experience wore off, my manager explained that our supplier was the former components division of our employer (the OEM) and that our CEO had desperately wanted to spin off the component divisions from the OEM.

To do this, our CEO had negotiated a deal with the powerful automotive union, agreeing that the union members would technically work for us (the OEM) but be leased to the newly spun-off supplier. If the OEM did not give enough business to the components supplier to keep the union members employed, the OEM was responsible for paying a large portion of their wages while they waited to be deployed somewhere else.

Effectively, this removed almost all negotiation power from us, the OEM. Therefore, our purchasing team had made a decision at the executive level to not participate in negotiations with this particular supplier. Instead, these negotiations were dumped into the laps of the product development team, with some support from finance.

Suppliers with Complete Supplier Power

The product development team had its own problems already. The marketing team was demanding much better performance and quality out of our parts. But the finance team demanded that those parts be cheaper than the previous generation of parts. And now we had an AWOL purchasing team.

In terms of the old Porter’s Five Forces framework, our supplier had tremendous supplier power! What to do?

I certainly was not an expert in drivelines yet, but I had just completed a master’s thesis focused on product cost. So, I first reached out to the cost estimation team within the OEM. The team helped us understand what the absolute cost might be for a drive shaft. We were also able to negotiate with purchasing to do an “unofficial” price study with other driveline suppliers.

Our first negotiation with our supplier (the OEM’s former component divisions) was pleasant but utterly futile. I excitedly explained what we thought the absolute part cost of these drive shaft parts should be and hinted that we had quotes from other suppliers to prove it.

Our supplier, being quite shrewd, politely explained why its product was, obviously, so much more valuable, combined with a tangible undercurrent of, “Well that’s nice that you have should costs and quotes from other suppliers, but we really don’t care because you have to use as a supplier regardless.”

Relative Should Cost to the Rescue


Now what were we going to do? These lines of argumentation (absolute should cost and competitive quoting) were not prevailing on the supplier. So I tried something different: relative should costing.A drive shaft is complex in many ways, but in reality it is a modular part design. It’s constructed mostly of the end yokes coupled with an extruded or seam-welded tube between those yokes. If we had a longer truck, we simply extended a tube. (For technical safety reasons, we had three variants: a one-piece steel driveshaft, one-piece aluminum and a two-piece steel.)  In total, we had over 70 part numbers of these three designs, and we knew the price quote for each variant.

Using a spreadsheet, I simply estimated a reasonable cost for one drive shaft tube for each of the 3 variants. With this estimate, it was easy to calculate a per-inch cost of that tube. By subtracting, I knew what all the other parts in the drive shaft (e.g. end yokes) approximately cost. That was all I needed. I didn’t need to know what the absolute cost of each driveshaft should be.

I just needed to know what each similar part should cost RELATIVE to another part.

In the second negotiation, we politely questioned the supplier on its confidence in its pricing ability. The supplier professed with great certainty that it knew how to price and stood by those prices.



Then we coyly pulled out the part numbers for the three drive shafts for which I had estimated the absolute and asked if the supplier stood by those prices. The supplier eagerly declared it stood by those prices. Gotcha!At that point, we started asking how Part B that was 5 inches longer of extruded tube than Part A could cost $10 more than Part A when the tube extension was only worth 30 cents. The supplier was not sure and asked for time to investigate. We had several more meetings on the topic, but in the end the supplier could not give any logical reason why its pricing for similar drive shafts varied in bizarrely non-linear ways.

The supplier reduced the cost of the entire driveshaft commodity by about 8%, resulting in about $35 million a year straight to the bottom line of my employer, the OEM.

Should the discount have been bigger? Yes. Did my calculations show that the supplier should have given us more money? Yes. But did we get a significant concession from a supplier that held every card in this negotiation? Yes we did.

In reality, the supplier still could have refused to reduce its costs. However, the point of these relative should-cost negotiation techniques is to bring logic and facts to bear to increase leverage in a situation where you seemingly have no leverage.

The win occurred when the supplier just couldn’t answer why its own pricing was internally inconsistent with itself.

This is a good lesson for suppliers to learn as well. When quoting a basket of similar parts, it’s wise to make sure that you understand your own pricing and reflect the underlying costs in a logical and linear way to your customer. This greatly reduces the risk of your customer casting doubts and driving your pricing down, perhaps unfairly.

Diagnostic vs. Leverage Tools and Absolute vs. Relative Should Cost

The case study above is an example of the difference between using a relative should-costing technique versus an absolute dollar should-costing technique. If this sounds interesting to your company, you may want to read a previous article of mine on Your Should-cost Number is Wrong, But It Doesn’t Matter. In this article, we talk further about using should costing, not only as a diagnostic gage to tell you what the cost is, but as a tool for leverage to move the cost down.

Remember, no matter how badly you think you are pinned down in a pricing negotiation, there are always tools for leverage that can help you improve your position. Relative should costing is one of these powerful tools that should be in your tool box.