Breaking down the top 20 D/ST's into 5 tiers to help you win your fantasy football draft! Remember, it's not so much about the specific rankings within each tier, but the rankings of the tiers themselves as a whole. Understanding tiers and how you form your own will allow you to see value in your drafts and capitalize on it when your opponents lets key players slip through the cracks. Disagree with my takes on any of the tiers below? Too high or low on your squad? Hit me up on Twitter @maddjournalist.