Understanding horizontal and vertical seams is critical to your run fits on defense. Let’s take a deeper look at the concepts. This concept is a big one in run fits. Understanding horizontal and vertical seams, and how to pull the levers to fix those seams for your force defenders, is one of the fastest ways to improve your defense. Seams is a fancy word for run lanes… or run lanes is a fancy word for seams. They can happen horizontal to the line of scrimmage, or perpendicular to the line of scrimmage. But the issue remains, when you have seams in your defense, you create run lanes for the offense. In this episode we’ll explain what horizontal and vertical seams are, how they create run lanes, why they happen, and how to fix them. This is a critical episode if your defense has had trouble maintaining force on the perimeter. Show Links Pulling Levers for Constant Improvement: FBCP S07E06 Coaching the ASKA Principle: FBCP S07E03