The director wanted income protection leads at £20 each.
I told him the reality: these leads cost £30 from Google. That's what the market bears. But at £30, we could target better keywords, attract more qualified prospects, and hit a 20% conversion rate. The maths worked.
He wasn't interested. He'd built his business on referrals from mortgage advisors and partners — warm introductions where the prospect was practically pre-sold. He thought paid leads should work the same way, just cheaper.
So we chased £20 leads. We got them. And they were rubbish.
Conversion rate: 10%. Half what it should have been. The leads were tyre-kickers, price-shoppers, people who'd clicked out of curiosity rather than intent. His sales team burned hours chasing people who were never going to buy.
He blamed me for the lead quality. I was younger then. I didn't stand up for what I knew was right. Now I'd have a very frank conversation: "Why are you paying me to be here if you've got it all covered?"
The relationship lasted six months.
Here's what he never understood: cost per lead isn't the goal. Net profit per lead is the goal. If you're making good profit on every lead, you can afford to pay more, bid more aggressively, generate more volume — and end up with more total profit even though each individual lead costs more.
But if you're obsessed with cheap leads, you get cheap quality. You get low conversion. You get a sales team who stops trusting the leads. And you get a business that can't scale because you've optimised for the wrong number.
He also missed the lifetime value play. Income protection on its own has tight margins. But if you're cross-selling into mortgages, life insurance, other products, suddenly that £30 lead is worth five times what you paid. He wasn't thinking in systems. He was thinking in line items.
The deal ended. I don't know what happened after. But I'd bet good money he went somewhere else, demanded £20 leads, and hit exactly the same wall.
Most business owners know one or two numbers from their marketing. Maybe cost per lead. Maybe total spend. Maybe a rough conversion rate.
That's not enough.
To run a profitable customer acquisition engine, you need to know your numbers at every stage of the funnel — and more importantly, you need to know what changing each number is worth.
When you know your numbers cold, decisions become obvious. You stop asking "is this campaign working?" and start asking "where's the biggest opportunity to improve?" You stop guessing at budgets and start calculating them. You stop hoping your ads are profitable and start knowing.
This chapter will give you the Performance Envelope, the eight metrics you need to track, how they connect, and how to calculate what improving any part of your system is actually worth.