The document outlines 10 common mistakes that can kill sales calls: 1) focusing inwardly on the product rather than the customer's needs, 2) lack of preparation without a call plan, 3) one-sided talking without engagement, 4) lack of coordination between sales reps and specialists, 5) inadequate coaching from managers, 6) unclear call objectives, 7) avoiding difficult conversations, 8) overly positive reps ignoring risks, 9) ending calls without defining next steps, and 10) lacking thought leadership and value. It recommends sales leaders track interactions, inspect deal progress, ask probing questions to ensure preparation, and provide ideas, insights and best practices to prepare reps for major interactions.