What does a marketing audit look at?
Everything that touches a customer before they buy: who you target, what you say, where you say it, what it costs and what comes back. We look for gaps, bottlenecks, hidden revenue and unicorns.
Most audits we do turn up the same three things. Money going to a channel nobody can prove works. A message that describes the company instead of the customer's problem. And at least one opportunity sitting in plain sight, often in the customers you already have.
That last one is common. An Arizona bank we worked with wanted new customers; the research showed their current clients knew nothing about the bank's other products. Retargeting inward produced 30% business growth.