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More teams play a 4-3 defense. Ideally, one of the defensive tackles is a two-gap-type run-stuffer. The other is a quick, inside penetrator. Quickness is very important at this position, and many defensive tackles are very successful pass-rushers because they play one-gap techniques and can put inside pressure on the quarterback.
Defensive tackles must be tough enough to mix it up inside and also stack and control the line of scrimmage. Quickness and explosion are the keys here, and one-gap, penetrating-type defensive tackles with some bulk coming out of high school are a sought-after commodity in recruiting.In the 3-4 defense, the defensive tackle becomes a nose tackle and lines up over the offensive center. The qualities are the same, but he is usually a two-gap-type run-stuffer who can occupy two blockers on the inside and free the inside linebackers to make a lot of plays.
A player at the high school level at or above 290 pounds with athleticism and quickness will garner the most attention from college recruiters. Many players may enter college as defensive tackles but will make the transition to the offensive side of the ball and become outstanding offensive lineman.Defensive Line Grading System
2. Pass rush: Are they power rushers or finesse rushers? What pass rush moves do they show, and do they vary? Are they able to get good, consistent penetration?
3. Pursuit: Do they get over trash? Do they have the quickness to get to the outside? Do they show good effort in pursuit?
4. Tackling: Do they wrap up well? Do they tackle low or high? Are they able to drag down? Do they tackle with power and are they punishing?
5. Initial quicks: How is their get off the snap? How are their feet? Do they anticipate the snap?
6. Recognition: Can they see blocks coming? How are their overall football instincts? Can they find the ball?
7. Neutralizing blocks: How are they one-on-one? How are they against a double-team trap? Can they anchor?
8. Key and diagnose: Do they reads blocks well? Do they have a good feel and see the ball?