We were only measuring 6% of what we bought.

Every marketing department has a number it doesn't want to look at directly.

At Indy Eleven, mine was media verification. We were spending real money across television, radio, print, outdoor and digital — and when I asked how much of that spend we could actually confirm had run, the honest answer was 6%.

Not 6% underperforming. 6% verified. The rest was invoices, insertion orders and trust.

Why this happens everywhere

It isn't incompetence. It's sequence.

Media buying is urgent — there's a season starting, inventory to lock, rates to negotiate. Verification is not urgent. It's the thing you do afterwards, and afterwards never comes because the next buy is already due.

So the department optimises what it can see: reach estimates, gross impressions, the numbers the vendor supplies. And it quietly stops asking whether those numbers describe anything that happened.

What we changed

We didn't buy a platform or hire an agency. We changed what counted as done.

A buy wasn't complete when the invoice cleared. It was complete when we had verification the spots ran, in the dayparts we bought, at the weights we paid for. That single definitional change forced everything else — the vendor conversations, the reporting cadence, the file structure.

By the end of the season, verified impressions had gone from 6% to 63% of the buy.

Then the more useful thing happened

Once you can verify delivery, you can calculate real cost. And once you can calculate real cost across channels, you can compare them for the first time.

We built the club's first channel-level CPM benchmarks. Not industry averages — our own, from our own market, on our own buys. The most efficient channel came in at a $9.13 CPM, and it was television, which was not what anyone expected.

That single number changed how the next year's budget was allocated. Not because of an opinion. Because of arithmetic that hadn't been possible twelve months earlier.

You cannot optimise a channel mix you have never actually measured. You can only rearrange your assumptions.

The lesson, stated plainly

What it did to the budget

The season's marketing budget was $718,000. We landed it $1,001 under goal.

I want to be careful here, because that number is easy to misread. Coming in under budget is not the achievement — anyone can underspend by doing less. The achievement is that we could predict where we'd land, because for the first time we knew what we were actually buying and what it actually cost.

Precision at the end of a season is evidence of visibility during it.

What transfers

Most organisations have a version of the 6% number. It might be media verification. It might be attribution, list hygiene, event ROI, or the gap between what a sponsor was promised and what a sponsor received.

The pattern is always the same: it isn't hidden, and it isn't anyone's fault. It just belongs to no one, so nobody asks.

Three things made this work, and they'd make it work anywhere:

• Ask the embarrassing question out loud. "How much of this can we actually confirm?" is not an accusation. It's a baseline.
• Change the definition of done. Systems follow definitions. Move the finish line and the process reorganises itself.
• Build your own benchmarks. Industry averages describe someone else's market. Yours describe the decision in front of you.

None of this is glamorous work. It produced no campaign anyone remembers and won no award. It just meant that every subsequent decision was made with information instead of instinct.

That's usually the difference.