Why GTM Metrics Fail & How to Fix Them for Growth

Most GTM teams rely on pipeline, conversion rates, and revenue tracking, but these GTM metrics fail to explain why revenue grows or stalls. Traditional reporting shows correlation, not causation, leading to unreliable forecasts and wasted marketing spend. Causal AI for marketing analytics shows what is happening and why, and how to improve GTM forecasts.

Takeaways

  • Most GTM metrics fail to explain revenue changes because they show correlation, not causation.
  • Forecasting based on historical trends leads to misallocated budgets and inaccurate forecasts.
  • 60-70% of B2B content goes unused by Sales.
  • Causal AI for marketing analytics can improve forecast accuracy by 30-50%.
  • Tracking friction metrics helps fix GTM reporting mistakes.

Measure What Hurts

A lot of GTM teams struggle with reporting mistakes because their dashboards don’t explain why revenue grows or stalls. Most traditional GTM metrics fail to show what’s actually driving revenue or how to predict future growth accurately.

Todd Mumford recently pointed this out on LinkedIn, listing friction metrics that usually get ignored.

  • The percentage of qualified leads that Sales never contacts
  • How often customers are confused by messaging we thought was clear
  • The number of support tickets for issues already covered in documentation
  • How many “emergency” projects actually moved the needle
  • The widening gap between Sales promises and what the product delivers

Friction metrics reveal where GTM efforts break down and explain why we keep missing our targets. They rarely show up at quarterly reviews because they are rarely tracked consistently. 

“The marketers who will outperform are brave enough to measure what hurts.”
 
Todd Mumford

For Todd’s complete list of metrics, see his post on LinkedIn.

The Blind Spots in GTM Metrics

Most GTM reporting focuses on what happened, not why. 

You get revenue numbers, conversion rates, and pipeline figures, but these only tell part of the story. Here’s what’s missing:

1. Traditional Metrics Often Show Correlation, Not Causation

You might see an increase in web traffic alongside revenue growth and assume one drove the other. But without causal analysis, you don’t know why revenue increased. Maybe it was a pricing change, a competitor going under, or an unrelated market trend.

According to a Wharton study, 57% of marketers misinterpret correlation as causation, leading to bad investments and wasted budget. 

Think of it this way:

  • Correlation: Every time you don’t wear your lucky socks, your favorite team loses.
  • Causation: No, your lucky socks don’t affect the outcome of the game. The real causes are things like player performance, coaching decisions, injuries, and travel schedules.

GTM metrics chart: 57% marketers misinterpret correlation as causation

2. Forecasting Is Often Based on Historical Trends, Not True Drivers

Many RevOps teams rely on pipeline coverage. For example, “We have 3x our quota in pipeline, so we’ll be fine.”

But without understanding which opportunities are likely to close and why, these forecasts are unreliable.

Google’s research confirms that traditional Media Mix Models (MMM) often inflate ROI estimates because “MMM typically produces correlational, not causal results.” That results in improper budgeting and misleading insights.

3. GTM Teams Struggle to Measure the “Messy Middle”

Marketing isn’t linear. Deals don’t move through funnels nor in a straight line. 

Buyers come and go as they please revisiting touchpoints, getting stalled by procurement, and engaging multiple channels. But most GTM teams don’t capture these behaviors.

For example, 60-70% of B2B marketing content goes unused by Sales, according to Forrester. If you’re not tracking which content is influencing deals, you’re burning money.

GTM metrics chart: 65% of B2B content marketing assets produced go unused

A Better GTM Metrics Framework

To answer what’s happening, why it’s happening, and how to predict growth, GTM teams need to track metrics that explain real-world outcomes.

Weekly KPIs:

  • % of qualified leads contacted (lead follow-up rate)
  • Win rate by lead source
  • Number of meetings to close a deal (friction indicator)
  • % of content used in sales cycles
  • Sales response time to inbound leads

Monthly KPIs:

  • Conversion rates through each funnel stage
  • Product promise vs. customer complaint themes (gap tracker)
  • Support ticket themes vs. help docs (misalignment check)
  • Pipeline coverage for the next 90 days

Quarterly KPIs:

  • Sales cycle velocity trends
  • Revenue impact of marketing campaigns (beyond last-touch attribution)
  • % of martech stack actually being used
  • Alignment test: Can teams explain positioning without looking it up?

Where Causal AI Makes a Difference

Traditional analytics can tell us what happened—revenue increased 20% last quarter. But It’s a mistake to assume that just because two things happen at the same time, one must have caused the other. 

Causal analytics help us understand why—a specific campaign, a competitor going out of business, or an economic or geopolitical shift. Causal AI separates real cause-and-effect relationships from coincidences. It filters out random noise and external factors to show what’s really driving growth.

Practical Use Cases for Causal AI in GTM Reporting

  • Predictive Revenue Forecasting: Tools like Proof Analytics analyze time-lag effects between marketing activities and revenue outcomes, making forecasts 83% more accurate, according to their users.
  • Marketing ROI Optimization: Google’s MMM framework now integrates causal AI to separate real campaign impact from coincidental traffic spikes, reducing over-attribution errors by 30-50%.
  • Sales Cycle Acceleration: Causal AI can show which actions actually shorten deal cycles vs. which ones just seem correlated.

When done right, Marketing is an exponential multiplier of Sales effectiveness and efficiency.

Marketing's multiplier effect on Sales.

Final Thoughts

The problem with traditional GTM metrics isn’t that they’re wrong—it’s that they’re incomplete. 

If you’re only tracking pipeline and conversion rates, you’re missing the friction points, the real decision drivers, and the hidden inefficiencies that stall growth.

Causal AI can improve effectiveness, helping you fix GTM reporting mistakes, forecast revenue accurately, shorten sales cycles, and optimize your marketing spend.

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This article is AC-A and published on LinkedIn. Join the conversation!