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  • Do You Expect Your Inside Sales Team to Practice Alchemy?

Turning bad leads into closed deals isn’t a sales skill — it’s a systems problem that gets blamed on reps. If you’re handing over the wrong leads, no amount of training fixes it.

Published: August 15, 2011  
Updated: March 19, 2026

min read

Too many marketers think that their inside sales teams are alchemists. They dump garbage data into the top of the sales funnel and expect sales lead gold to come out the other side.

This came to mind when my teleprospecting team was struggling with one of our lead-generation clients.

They had promised us a “high-quality list” from their database: tens of thousands of names of C-suite executives who were in their target market’s sweet spot.

The reality: nearly half the contacts had disconnected phone numbers, and another 30 percent definitely weren’t in the target market for this particular product—think fast food joints and mom-and-pop businesses. The remaining contacts had missing or inaccurate information. My team spent at least 80 percent of their time doing research and investigation to make a list usable so they could do what they were actually hired to do—generate leads.

Test your lists unless you want your inside sales professionals to be mere data entry clerks! It takes about 30 hours of calling to attain a fairly accurate understanding of list quality by answering these questions:

  • Is there duplicate data?
  • Is the information current and complete?
  • Are the contacts truly in your product’s target market?

If more than 1 out of 20 contacts fail this test, I advise cleaning this list before passing it along to a lead-generation team unless you don’t mind your team tracking down and entering data instead of generating leads.

Here’s the crux: you may think you have this fantastic, robust database, but only a small segment of it may be the customer you want to reach. Too much data is likely old and unusable unless you’re constantly updating your lists.

Indeed, your team may be alchemists and generate impressive numbers of leads regardless of the garbage you’re giving them. My team did. They gave the client with the horrifically bad list an 800 percent return on investment, but not without much extra work and stress. I can’t help but think how much higher their ROI would have been if given a better list. Think about what your teams could achieve, too.

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Brian Carroll is the founder of Markempa, host of the B2B Roundtable Podcast, and author of Lead Generation for the Complex Sale (McGraw-Hill). He is a Certified GTM OS Partner and runs the GTM Clarity Roundtable, a community of 20,000+ B2B sales, marketing, and GTM professionals.

Brian works with leadership teams at established B2B companies with complex sales to identify what’s limiting growth, align on what to fix, and help their teams make the change.

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