When a startup launches a new product, it's tempting to ramp its sales force too quickly. Often, this leads to a crash-and-burn scenario for companies that failed to learn what it took for the *entire organization* to achieve product-market-fit. In this lesson of greatness, Mike Maples, Jr of FLOODGATE discusses how Mark Leslie's Sales Learning Curve framework helps startups keep themselves honest about their progress toward product-market fit, rather than falling into the trap of wishful thinking that usually leads to disaster.