Fantasy football isn't just about touchdowns anymore. In leagues that use Individual Defensive Players (IDP), your season can hinge on a linebacker's snap count or a box safety's tackle floor. That's where IDP Fundamentals comes in.This book is the complete guide to mastering IDP leagues, written for managers who want to stop guessing and start winning. It strips away the chaos of defensive stats and replaces it with clear systems you can use every week-from draft night to championship week.Across thirty chapters, you'll learn how to build an IDP roster that scores with consistency instead of chasing highlight plays. Each lesson begins with a story pulled straight from the trenches of real fantasy leagues: the rookie who drafted by name and lost, the manager who streamed cornerbacks by matchup and stole wins, the veteran who mined bad defenses for golden tackle volume. These parables drive home the central truth of IDP: volume, roles, and opportunity beat hype every single time.Inside, you'll find: Snap counts explained as the true currency of IDP scoring, showing why a full-time linebacker always beats a part-time sack artist.Role-based drafting techniques that spotlight three-down linebackers, box safeties, and high-win-rate pass rushers.Streaming frameworks for cornerbacks, defensive backs, and waiver churn that take the guesswork out of lineup decisions.Step-by-step systems to map weekly matchups, exploit bye weeks, and identify fast defenses that inflate production.Tools for offseason prep, including how to track coordinator changes, monitor beat reports, and project usage deltas before they hit box scores.Each chapter delivers a cycle of story, stats, and strategy, so you learn not only what to do but also why it works. The book includes checklists, weekly workflows, and two-minute drills that make complicated concepts actionable. By the end, you'll have a repeatable system for IDP roster management that works in both tackle-heavy and big-play formats.Whether you're new to IDP or a veteran frustrated by weekly volatility, this guide shows you how to play defense like a strategist. You'll stop tilting at highlight reels and start cashing wins with boring but reliable tackle machines.Fantasy football is absurd and beautiful: we sweat over whether a linebacker in Jacksonville logs 95 percent of snaps. But that absurdity is where championships are won. IDP Fundamentals hands you the compass to navigate that chaos with confidence.