Qualify for fit, not just for interest
Interest is cheap. Someone replying "this looks interesting, send me more" feels like progress, and it is the single most common way reps deceive themselves about a deal. Interest tells you a person was polite or curious. It tells you nothing about whether they can buy, when, or why they would. Fit tells you all three, and fit is what you should be qualifying for from the first conversation.
Fit has a few hard edges worth naming out loud. There is the problem (is the pain you solve one they actually feel and rank as urgent), the authority (is the person in front of you able to spend money or sponsor someone who can), the timing (is there an event, deadline, or cost of inaction forcing a decision soon), and the economics (does the value you create dwarf the price you charge for this particular buyer). When all four are present you have a deal worth your energy. When two are missing you have a coffee chat that will sit in your pipeline for five months and close lost.
The frameworks people quote, BANT, MEDDIC, whatever the acronym, are all just structured ways of checking those edges. Do not get religious about the letters. Get religious about asking the questions early, before you have invested three calls and a custom demo into someone who was always going to ghost. Disqualifying fast is not pessimism, it is the kindest thing you can do for your own conversion rate, because every hour you do not spend on a bad-fit deal is an hour you spend on a good one. If you want this to scale beyond gut feel, a lead scoring model turns fit into something repeatable, and a proper lead qualification framework keeps every rep asking the same hard questions.
The practical move is to build a short qualification checklist your reps run on every opportunity, and to make "no" an acceptable, even celebrated, outcome of an early call. A team that proudly disqualifies is a team that converts, because the deals left standing are the deals that were always going to be real. Hold the BANT checks as a floor, not a ceiling, and your effective pipeline gets stronger every time you say no.