Analysis uncovered that the company's highest-volume paid search campaigns had virtually no connection to pipeline or revenue. This highlights the danger of optimizing for vanity metrics like traffic or form fills, instead of business impact, and the risk of automated tools like Google Performance Max.

While a blended CAC is the North Star metric, don't discard individual channel analysis. Use siloed metrics to diagnose problems. When your overall blended CAC increases, dive into the channel-specific data to identify the underperforming source, such as ad fatigue on a specific platform.

Using a blended CAC doesn't mean ignoring individual channel performance. Use the blended number as your high-level strategic guide. When it rises, dive into the siloed, channel-specific metrics to diagnose the root cause of underperformance and make tactical adjustments.

A blended CAC across all channels hides crucial information. By calculating CAC for each individual platform or method (e.g., paid ads, content, outreach), businesses can identify their most efficient channels. This allows them to reallocate budget and effort to the highest-performing areas for more profitable growth.

Pay-Per-Click (PPC) advertising is the fastest but most expensive way to generate leads, acting like a faucet you can turn on and off. The ideal strategy is to use it for immediate lead flow while simultaneously investing in brand building, which encourages customers to search for your company directly, lowering acquisition costs over time.

Many B2B paid search campaigns fail not from low budget, but from a low Quality Score causing high "impression share lost to rank." This fundamental mismatch between keywords, ads, and landing pages throttles ad delivery, a problem that cannot be solved by simply increasing spend.

In today's market, paid search is ineffective for demand creation; it only works for demand capture. Viable companies must already have significant demand for their brand, category, or problem, and a high average contract value (ACV) to absorb the increasingly high customer acquisition costs.

Instead of optimizing each channel in isolation, establish a single blended CAC target across all marketing efforts. This provides a holistic view of performance, preventing premature cuts to channels that assist conversions attributed elsewhere. It acts as a single health metric for your entire acquisition strategy.

Agencies often use low impression share as a seductive argument for increasing ad spend. The critical pushback is to ask for the breakdown between "impression share loss to rank" and "loss to budget." High loss to rank points to fixable quality issues, not a need for more money.