A lead is still simply someone who has signaled interest in what you sell. What's changed is that most B2B decisions now involve a buying group, not one person, so a single form fill often represents several stakeholders you'll never see in your CRM. Treating that one form fill as one lead is a common reason lead engines look healthy on paper but underperform in sales meetings.

Close to 70% of marketers report that leads now reach them later in the buying process, because buyers research using AI before ever making contact. Your tactics likely didn't stop working — the ground shifted underneath them. Buyers are still out there; they're just harder to see until later.

AI search sits above your other channels, deciding which brands even get considered before someone visits your site. Traffic volume may shrink, but visitors who do arrive tend to be further along and more likely to convert, since they've already done research and formed a shortlist.

Fit measures whether a company matches who you sell to (size, industry, budget). Engagement measures whether they're behaving like a buyer (page visits, opens, repeat visits). These are two separate questions that should be scored separately, a single blended score can make a great-fit company reading one page look identical to a poor-fit company reading nine, when those two situations call for completely different actions.