Typical sales stages like "Demo" or "Proposal" are seller-centric. A more effective process uses buyer-centric stages like "Problem Agreement" or "Value Agreement." This focuses the sales motion on what decisions the buyer needs to make to move forward confidently.

Jon Miller, who helped popularize the MQL, now compares its linear funnel to the geocentric model of the solar system. He argues it was a once-useful simplification that no longer reflects the complex, nonlinear reality of B2B buying, as it ignores the most important, untrackable parts of the journey.

Traditional funnels jump from a marketing signal (like an MQL) to an opportunity, creating a blind spot. They miss the 'Engagement' period of initial interaction and the 'Prospecting' phase of active sales pursuit. Ignoring these stages makes it impossible to diagnose performance issues or identify improvement levers.

Most GTM systems track initial outreach and final outcomes but fail to quantify the critical journey in between. This "ginormous gray area" of engagement makes it impossible to understand which activities truly influence pipeline, leading to flawed, outcome-based decision-making instead of journey-based optimization.

The marketing funnel's resilience isn't just inertia. It's systemically reinforced from both ends of a marketer's career. Universities teach it as a foundational concept, and leadership (CEOs, boards) demands its simplicity for reporting, leaving practitioners in the middle unable to drive change without significant career risk.

The marketing funnel survives not because it's accurate, but because it's a memorable piece of "intellectual property." In a world of information overload, the human brain gravitates towards simple, easy-to-understand concepts. The lack of widely accepted, equally simple alternatives in B2B marketing ensures the funnel's continued dominance.

Academics defend the funnel as an aggregate snapshot of a market's proximity to purchase, not a literal customer path. However, this theoretical definition is irrelevant because practitioners use it as a linear tool for micro-optimizations (e.g., MQL to SQL conversion), which is precisely why it fails to reflect the non-linear reality of modern buying.

In subscription or repeat-purchase businesses, the customer relationship begins at the point of sale, it doesn't end. The funnel metaphor is limiting because it ignores the crucial post-acquisition phases of adoption, expansion, and loyalty, where most value is created.

A traditional contact-based funnel (Lead > MQL > SQL) is inadequate for B2B. Shift to an account-based funnel that maps target accounts to stages like "Awareness" or "Engaged." The primary GTM goal then becomes progressing entire accounts from one stage to the next for a more accurate view of pipeline health.