What a constraint costs you before you fix it

Most owner-managed businesses can describe the thing holding them back. Very few can say what it costs them each month. That gap is expensive, because a problem without a number cannot be prioritised against anything else on the list.

Start with the flow the constraint interrupts. If quotes sit for nine days before they go out, the cost is not the delay. It is the win rate you lose on the quotes that go cold, multiplied by average order value, multiplied by volume. Write that figure down before anyone proposes a fix.

The national picture makes the same point at scale. UK output per hour worked has moved very little since the financial crisis, and the Bank of England has repeatedly pointed to weak business investment and adoption of existing practice rather than any shortage of ideas. Firms are not usually short of options. They are short of a costed reason to choose one.

Sizing also protects you from the wrong purchase. A nine day quote turnaround caused by an approval bottleneck is not solved by new software. It is solved by moving the approval limit. The cost of getting that wrong is not only the tool. It is the quarter you spend implementing it and the credibility you spend asking your team to adopt it.

So the order matters. Name the constraint, size it in cash per month, then choose the smallest change that moves the number. If a supplier cannot describe their work in those terms, you are being sold activity.

A practical test before your next investment decision: can you state, in one sentence, what this constraint costs you every month, and what evidence gives you that figure? If not, that is the work to do first.