Both sides are usually right, and that's exactly why the argument never resolves. Marketing genuinely is producing leads that aren't ready to buy, and sales genuinely is ignoring leads that deserved a call. Industry benchmarks put typical MQL-to-SQL conversion around 15%, meaning even in healthy businesses, 85% of "marketing qualified" leads don't survive first contact with sales scrutiny. The fix isn't deciding who's at fault. It's replacing two private definitions of "a good lead" with one shared, written one, and measuring both sides against it.
Because the two teams are paid for different moments in time. Marketing is measured on volume this quarter, so it optimises for form-fills. Sales is measured on revenue this quarter, so it triages ruthlessly and calls only the leads that look closest to money. A lead that downloads a guide is a success by marketing's metric and a time-waster by sales'. Neither is behaving badly; they're responding rationally to how they're measured. Which means the standoff is a system design problem, and blaming individuals just relocates it.
Get both teams in one room and define, in writing, what qualifies a lead for sales attention. The practical shape: firmographics (industry, size, role), a signal of intent (requested contact, asked about pricing, booked a call, as opposed to merely downloading something), and disqualifiers everyone honours (students, job seekers, geographies you don't serve). The conversation is usually uncomfortable and always worth it, because it surfaces the real disagreement: sales wants hand-raisers only, marketing counts everyone. The compromise is a tiered definition. Hand-raisers go to sales immediately; everyone else goes into nurture, not into a salesperson's queue.
The moment a lead passes from marketing to sales is where most value evaporates. Agree explicit rules: every qualified lead gets first contact within an agreed window (speed matters enormously; response inside minutes versus days dramatically changes connection rates), every lead gets a minimum number of touches before being marked dead, and every outcome gets recorded with a reason. In exchange, marketing commits to sending only leads that meet the written definition. Both commitments are measurable, which is the point. The argument moves from anecdotes to data.
The standoff persists in companies where sales dispositions leads with "rubbish" and marketing never learns why. Institute a short monthly review of a sample of leads: what did sales find when they called? Wrong company size? Right company, wrong timing? No budget? Each answer has a different fix (targeting, nurture, or offer) and none of them is discoverable from a dashboard alone. In businesses that run this loop, lead quality improves within a quarter, not because anyone worked harder but because marketing finally knew what to aim at.
If marketing is bonused on lead volume, you will get volume. Shift shared measurement one stage downstream: marketing owns qualified opportunities created (not raw leads), sales owns conversion and response-time SLAs, and both look at one pipeline report in one meeting. Some businesses go further and give marketing a revenue-sourced target. The details matter less than the principle: when both teams are paid on the same number, the standoff has nothing left to feed on.
The healthy version isn't harmony. It's productive friction with a shared scoreboard. Marketing sends fewer, better leads and defends nurture as a legitimate destination for the rest. Sales responds fast and records honest outcomes. Both attend one monthly meeting where the numbers are visible and the definitions get refined. Businesses that run this way consistently report shorter sales cycles and better conversion, not because the leads changed, but because the leaks between the teams closed.
Who should own the lead definition? Jointly written, but the tiebreaker should be evidence: which lead profiles have actually closed in the last two years. Your CRM already knows the answer.
What's a reasonable response-time SLA? Same business day at minimum; within an hour for hand-raisers if you can staff it. Every hour of delay measurably reduces connection rates.
What if we're too small to have separate teams? The same standoff happens inside one founder's head: generating leads you then don't follow up. The written definition and the response-time rule still apply; they're just promises to yourself.
Does more lead volume ever fix the problem? No. It multiplies it. Pouring more leads into a broken handover just produces the same argument at higher cost.