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per request from ShirtsLeeve I decided to post another thread dealing with football defense.
I found the following article fascinating. Click the diagram to go to the link.
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the reason that I personally like the 3-4 defense is that it allows you to involve eight players against the run without having to play man-to-man in the secondary. This helps us to stop the run with our guys up front and limits the offense’s potential of the big play. We can be aggressive with our front seven without taking risks in the secondary.
In this play, the secondary goes into a cover-3 shell. The SS is the force/flat defender (sky coverage). The ROLB (defense perspective) covers the other flat.
Notice that the play allows a
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"Mike” or “Will” blitz and our cover 3 behind it. Notice how we are able to actually get eight men involved against the run and still be a zone team in the secondary. We can bring two and sometimes three linebackers depending on the offensive personnel group that is in the game and still play some type of zone coverage behind it.
Last edited by PATRIOTS-80; 02-19-2007 at 04:56 PM..
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ok, here's another one. Feel free to comment. And remember, its all for fun!!!
The coverage is a standard cover-2 shell. The underneath coverages are divided into 4 sections, the CB takes 1/4, the RILB takes 1/4, the LILB takes a 1/4 and the other CB takes a 1/4. Both OLBs blitz along the 3 defensive lineman.
what I don't get is cover-2 squat and cover-2 read.
2 Squat is also known as 2 Hard. The CB's are pure flat players. 2 Read has the CB's playing flat, unless #2 goes vertical. Then they must play deep as the Safety would get 2 deep in his area.
__________________
"Never attribute to malice that which is adequately explained by stupidity."
2 Squat is also known as 2 Hard. The CB's are pure flat players. 2 Read has the CB's playing flat, unless #2 goes vertical. Then they must play deep as the Safety would get 2 deep in his area.
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Based off of pattern pressure, we could have four deep defenders. The safeties will “stay inside of the #2 receivers” leveraging the seams, and the corners will read their way deep or read their way up to the out zones or flats.
When they say "stay inside of the #2 receivers," is that referring to the slot receivers?
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The aforementioned threat of pattern pressure creating four deep defenders dictates that we define this as a true 1/4, 1/4, 1/4, 1/4 zone coverage. We are now taking that same 26.67 yards worth of width and dividing it in half again. There are four deep zones each width being 13.34 yards.
ok, whats the difference between cover 4 and a cover2 read?
When they say "stay inside of the #2 receivers," is that referring to the slot receivers?
Yes, them or the tight end or motioned tailbacks (technically a slot receiver). Actually the real answer to this premise is not so much "the #2 receiver pre-snap" its "the 2nd receiver on that half of the field running deep." The DC here is asking his safeties to stay inside of the inside-most deep receiver on his half, when the default technique for the safety would be to split the two receivers and play the ball once thrown. The safety can jump the inside guy if the corner is responsible for the deep out and fade.
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Originally Posted by PATRIOTS-80
ok, whats the difference between cover 4 and a cover2 read?
Cover 2 "Read" or "Soft" is a hybrid of Cover 4 and Cover 2 "Squat," "Hard" or "Tough." Not to be insulting by noting the obvious, but the pattern to understand for coverages is the number tells you how many men are deep/without force responsibility. In Man 1 one person (generally the Free Safety) is deep, in Man 0 no one is deep, and in Cover 4 four men are deep.
Cover 2 Read is called like it is because it is more a Cover 2 than a Cover 4. It becomes a Cover 4 when the deep zone is stressed, but pre-snap coverage and force assumptions are made consistent with a standard Cover 2 (Cloud Force is the standard Cover 2). If the offense were to run a sweep the corners would have outside contain, which is not true out of a Cover 4 (outside linebacker has to get over the top). Also the Cover 4 usually has the outside backers dropping out to the flats, while the Cover 2 puts them in the hook/curl area on the seam.
Last edited by unoriginal; 02-20-2007 at 01:13 AM..
Yes, them or the tight end or motioned tailbacks (technically a slot receiver). Actually the real answer to this premise is not so much "the #2 receiver pre-snap" its "the 2nd receiver on that half of the field running deep." The DC here is asking his safeties to stay inside of the inside-most deep receiver on his half, when the default technique for the safety would be to split the two receivers and play the ball once thrown. The safety can jump the inside guy if the corner is responsible for the deep out and fade.
Cover 2 "Read" or "Soft" is a hybrid of Cover 4 and Cover 2 "Squat," "Hard" or "Tough." Not to be insulting by noting the obvious, but the pattern to understand for coverages is the number tells you how many men are deep/without force responsibility. In Man 1 one person (generally the Free Safety) is deep, in Man 0 no one is deep, and in Cover 4 four men are deep.
Cover 2 Read is called like it is because it is more a Cover 2 than a Cover 4. It becomes a Cover 4 when the deep zone is stressed, but pre-snap coverage and force assumptions are made consistent with a standard Cover 2 (Cloud Force is the standard Cover 2). If the offense were to run a sweep the corners would have outside contain, which is not true out of a Cover 4 (outside linebacker has to get over the top). Also the Cover 4 usually has the outside backers dropping out to the flats, while the Cover 2 puts them in the hook/curl area on the seam.
thanks unoriginal. So, if the inside slot receivers run deep routes, the safeties have to read into a cover 4 look, and so do the CBs. Don't the underneath coverages have to change then ... if the CBs are vacating the flats?
Principles of the 3-4 defense
Linear Mode
