Wild Bill
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Can someone explain to me the difference between the 2 DT's in our 4-3?
I expected Jay Hayes to fill in as starter when Jarron went down, but sounds like he's specifically only backing up the other DT.
Sounds like it's Tillery, Cage at one spot, then Day and Hayes at the other, and they're not interchangeable.
Generally speaking, BVG's system has the 1 tech on the strong side. The most basic plays in every offense is the strong side run game. A double team on the strong side, usually on the strong side DT, is where it all starts. The offense is trying to get movement from the DT up to the mike linebacker. It's the key battle in almost every game. If you can't move the DT, the mike scrapes over easily and shuts down the run game. If the double team can get movement on the DT, it makes it easy to chip off the double and latch on to the mike or the mike gets caught in the wash (basically the bodies getting driven backward). If the DT is getting driven with consistency, it'll be a long day for the defense.
The three tech isn't as burdened by the possibility of a double team (though it happens). He's more concerned with controlling his one gap and disturbing the offense with quick penetration. Day is perfect for the system for three reasons: 1. He's quick off the snap. If he is shooting a gap, he's almost always a step in front of the offensive lineman. That's rare and anyone that has played on the offensive line knows how difficult it is to stop a three tech that is one step ahead of you into the gap. Leads to a lot of holding calls. 2. He's also ridiculously good at disengaging blockers. In a two gap system, you can't be so quick to disengage b/c you have to protect both gaps. One gap gives you the freedom to shake a blocker as quick as possible to get in the gap. 3. He's short, stocky and powerful. When he crosses the linemen's face as he slants into the gap, there is nothing to grab. It's just demoralizing for an offensive lineman when it happens. The guy literally trucks past you and you can't do shit. Day is just too compact and too powerful to stop at times, even when he has to cross the lineman's face and his body is completely exposed to the blocker. He's going to be disruptive as hell.
1 tech has to be stout and hold the point of attack. 3 tech has to disrupt with penetration.
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