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  • Cover 2, 4-3, and 3-4

    I am newer to the boards and do not have a very good knowledge of the defensive side of the ball. I wondering if someone could give an indepth explanation of either the Cover 2, 4-3, or 3-4 defense. Thanks in advance.

    Thanks to Bone Krusher for the sig

  • #2
    Rather than waste my time to explain it you can refer to this article for Cover 2.

    http://www.footballoutsiders.com/index.php?p=167

    Comment


    • #3
      Here are some quotes from myself as well as others on the 3-4 defense. I went back and did a search, Im too lazy to say the same thing all over again, so just read up on these quotes and that should help you out some. I hope this helps. Any questions, let me know, I love talking defense. Its my specialty.




      Originally posted by bigbluedefense View Post
      You knew I had to post in this thread right?

      The 3-4 is the ****. W00t w00t!

      But in all seriousness, let me explain in detail why I feel the way I feel.

      First and foremost, the poll is far too basic. Youre referring to formations, and the formations' individual scheme can vary greatly between coaching styles. The 4-3 has many variations, Cover 2 being an example of it. Then you have the 46, and hybrids etc, its too basic of a definition to define just as 4-3.

      My favorite defense is the 3-4 base that Bill Parcells and Bill Bellichick run. The 2 gap 3-4 that is based on LB zone coverages and man coverages on the outside. Its passive in nature, but can be aggressive when need be. It doesn't live and die with the blitz, but can still manufacture an effective pass rush.

      And its versatility makes it a good front against any offense. It has had success against great offenses of many types, the 49ers WCO of the 80s, the Buffalo Bills no huddle Air Coryell, the Colts no huddle, the 2 TE smashmouth offense of Joe Gibbs....its been proven to be an effective scheme against any type of offense thrown at it.

      Thats why its the best. Its won 5 SBs and its effectiveness against any offensive scheme makes it better than any defense. Cover 2 schemes are vulnerable to the Air Coryell and 2 TE power run game, the 46 is vulnerable to the WCO, the conventional 4-3 and its variations are often too difficult to build with little flaws because its difficult finding elite talent in every position of the conventional 4-3, and its basic fronts are less confusing to Qbs.

      The 3-4 is also better against the run, which is ultimately what defense is all about. I can go on and on, I love talking Xs and Os of the game. My favorite schemes of all time are Bill Parcell's 3-4, Buddy Ryan's 46, Tom Landry's Flex 4-3, and the hybrid defense that Denver ran in the early 80s (to this day, that was probably the most complex defense Ive seen. They used so many situational players and player substitutions in different fronts, its not even funny. Brilliant defense).

      Originally posted by bored of education View Post
      Here are the Wikipedia descriptions of the FB-34 defense that I love, and also the ZB34 defense

      The 3-4 defense was originally devised by Bud Wilkinson at the University of Oklahoma in the late 1940s [17]. Former Patriots and Oklahoma coach Chuck Fairbanks is credited with being a major figure in first bringing the 3-4 defense to the NFL in 1974 [18]. Patriots defensive coordinator Hank Bullough made significant further innovations to the system [19]. Parcells was linebackers coach under Ron Erhardt as head coach of the Patriots in 1980 (after Fairbanks left for Colorado in 1978 and Bullough lost out on the head coaching position). When Parcells returned to the Giants as defensive coordinator under Ray Perkins in 1981, he brought the 3-4 defense with him.

      Bill Belichick was initially exposed to the 3-4 defense while working as an assistant under Red Miller, head coach of the Denver Broncos and a former Patriots offensive coordinator under Fairbanks. Joe Collier was the defensive coordinator under Red Miller at the time [20], and his orange crush defense was very successful at stifling opposing offenses. The Broncos had decided to adopt the 3-4 in 1977. Bill Belichick subsequently refined his understanding of the 3-4 as a linebackers coach and defensive coordinator under Parcells with the Giants. Belichick returned the 3-4 defense back to New England when he become coach of the team in 2000 [21]. Romeo Crennel subsequently became defensive coordinator for the team.

      The New England Patriots run a modified base 3-4 Chuck Fairbanks - Hank Bullough system [10] installed by Bill Belichick. The term 3-4 means that their base formation consists of 3 defensive linemen, 4 linebackers, and 4 defensive backs. It is believed that this gives the defense the greatest amount of flexibility because the linebackers are capable of doing any of the following: rushing the quarterback, tackling runners or dropping into coverage. At times the Patriots will shade their defensive linemen different ways, creating "over" or "under" defenses. Over and under defenses simply refer to the shift of the defensive linemen to the strong or weak side of the offense, respectively, and the rotation of the linebackers in the opposite direction.

      --------------------
      The 3-4 zone blitz defense was developed by Dick LeBeau as defensive coordinator of the Pittsburgh Steelers. It commonly calls upon linemen to be mobile enough to drop back into zone coverage in place of blitzing linebackers [25]. Elements of the 3-4 zone blitz defense have been incorporated over time into the modern Phillips 3-4.
      Originally posted by bigbluedefense View Post
      They say the 4-3 is a player's defense, and the 3-4 is a coach's defense.

      Players like the 4-3 because LBs can put direct hits on RBs, DEs can rush the passer, and DTs can penetrate.

      In the 3-4 everyone's role is less "fun". LBs have to take on linemen and bubble around players, DEs have to hold their blocks, NTs have to occupy linemen as well...its not as fun for the player. Its more passive in nature.
      Originally posted by Staubach12 View Post
      The 3-4. It allows to you to put more speed on the field, be more agressive when necessary, but also sit back a little more if needed. It's much more effective at confusing offenses, as well.
      This is actually a misconception of the 3-4 that is not true. The 3-4 uses bigger LBs who are stronger yet slower in coverage, and remember, just because you have 4 LBs opposed to 3 doesn't mean anything, because one of those LBs is rushing the qb anyway. Plus, the dlinemen are also bigger/stronger but slower, so team speed is decreased in the 3-4 opposed to the 4-3. This makes for better run stuffing because the front 7 is thicker up front, but worse pass coverage in general opposed to smaller quicker 4-3 defenses. The 3-4 relies more on scheme and confusion to hinder the pass game, where the 4-3 relies more on athleticism in general terms. I broke down the differences in an old post, it was quite long so I'll just copy and paste it onto here:

      Originally posted by bigbluedefense View Post
      I also want to discuss this notion that the 3-4 is quicker than the 4-3. This is actually false.

      We assume that because you have an extra linebacker, that your team defense is faster, but the truth is 3-4 defenses are slower than 4-3 defenses, and actually thicker when you add up the total body mass of the front 7.

      The prototypical 3-4 has these respective weights.

      DE - 290
      NT - 340
      OLB - 260
      ILB - 250

      Thats 1940 lbs of mass in the front 7.

      The prototypical 4-3 bodyweights are

      DE - 270
      NT - 310
      UT - 300
      MLB - 240
      SLB - 240
      WILL - 235

      Thats 1865 lbs of mass.

      The 4-3 has smaller quicker linebackers who play the middle of the field faster than the 3-4.

      Remember, while the 3-4 may have one extra LB, youre usually blitzing that LB, leaving 3 LBs in coverage who tend to be thicker than 4-3 Lbs, so you have less speed in coverage. Plus, your 3 downlinemen are essentially all DTs, so you get less overall speed out of the pass rush as well.

      This is why the 3-4 is better against the run, but worst against the pass. You have a thicker front 7 against the run, and its spaced out so its difficult to bounce it outside as well. However, the overall weight of the front 7 reduces team speed, making coverage a little slower, and pass rush a little slower, thus equating to worse pass defense.

      Don't believe me? Think about who has the best run defenses in the league. Dallas, Pittsburgh, and SD. All 3-4 teams. Who has the best pass defenses? Generally Cover 2 teams, built on speed and 4-3 fronts, like the Bears.

      Comment


      • #4
        the three-four is a defense where the linebackers generate the pass rush through blitzes


        the cover two basically doesnt allow a team to pass on you, and the pas rush is generated by the down lineman. Its basically a bend but dont break defense.

        not too sure about the 4-3, i think it is the cover two with more blitzes and man coverage, but i could be wrong.


        Originally posted by mythbusta
        i love my pedestal. thats why im the mythbusta.
        who dey?

        Comment


        • #5
          This is a great link for anyone who would like to learn a better more detailed understanding of the Xs and Os of the game, on both sides of the ball.

          http://en.wikipedia.org/wiki/American_football_strategy

          I don't know exactly how much you understand about football, but I recommend you read that link in detail. It will help you out and answer many of your questions.

          Comment


          • #6
            Originally posted by bigbluedefense View Post
            Here are some quotes from myself as well as others on the 3-4 defense. I went back and did a search, Im too lazy to say the same thing all over again, so just read up on these quotes and that should help you out some. I hope this helps. Any questions, let me know, I love talking defense. Its my specialty.

            If you ever have the time and are willing to write up any defensive stuff, I would love to read what you have to offer.

            Thanks to Bone Krusher for the sig

            Comment


            • #7
              Originally posted by devinhester=R.O.Y 2006 View Post
              If you ever have the time and are willing to write up any defensive stuff, I would love to read what you have to offer.
              Oh man, just do a search on my stuff. Ive written essays on defense before. Check out the wikipedia link i posted. That will help you alot.

              Any questions, just ask and Ill do my best to help. People have PM'd me questions before, its not a big deal.

              Comment


              • #8
                Originally posted by bigbluedefense View Post
                Oh man, just do a search on my stuff. Ive written essays on defense before. Check out the wikipedia link i posted. That will help you alot.

                Any questions, just ask and Ill do my best to help. People have PM'd me questions before, its not a big deal.
                I printed out the wikipedia and plan on reading it tonight when my girlfriend watches grey's anatomy with her roomates.

                Thanks for the info

                Thanks to Bone Krusher for the sig

                Comment


                • #9
                  It's also worth noting, as I didn't see a differentiation, that the Cover 2 is not a defense, it's a cover scheme. The Tampa 2 is a type of defense, but each Dungy disciple has his own varients.

                  And the 4-3 isn't a defensive scheme, it's just a formation.


                  Nobody cares about your stupid fantasy team.

                  Comment


                  • #10
                    Originally posted by bearsfan_51 View Post
                    It's also worth noting, as I didn't see a differentiation, that the Cover 2 is not a defense, it's a cover scheme. The Tampa 2 is a type of defense, but each Dungy disciple has his own varients.

                    And the 4-3 isn't a defensive scheme, it's just a formation.
                    He's not ready for all that yet. He's gotta crawl before he walks. Let him learn the basics first.

                    Comment


                    • #11
                      This is an impossible question. Because the way Wade Phillips' uses for the 3-4 is drastically different than Bill Belichick's defense. Both formations (3-4, 4-3) are successful when the talent, coaching, execution comes together. Both formations fail when those aforementioned characteristics do not work out. I've seen first hand what happens when a 3-4 defense doesn't have the personnel to execute the schematics. It's like the cliche' where all "West Coast Offenses" are grouped together, when each one is drastically different from the last.
                      Last edited by Shiver; 05-04-2007, 04:43 PM.

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                      • #12
                        4-6.

                        It's just impossible to get the personell in today's NFL.


                        Comment


                        • #13
                          Originally posted by Non_Sequitur View Post
                          4-6.

                          It's just impossible to get the personell in today's NFL.
                          It's not "4-6." It's just "46." Forty-six. Buddy Ryan named it after his safety at the time, Doug Plank.

                          Comment


                          • #14
                            Originally posted by yourfavestoner View Post
                            It's not "4-6." It's just "46." Forty-six. Buddy Ryan named it after his safety at the time, Doug Plank.
                            *Rolls eyes* Everyone understood what I meant.


                            Comment


                            • #15
                              Originally posted by devinhester=R.O.Y 2006 View Post
                              I printed out the wikipedia and plan on reading it tonight when my girlfriend watches grey's anatomy with her roomates.

                              Thanks for the info
                              You're not going to be watching Grey's as well? For shame.
                              The whole world loves neophyte athletic tight end Jimmy Graham from Miami with the 95th pick. "Best pick in the draft,'' one AFC coach told me. "Give him time, and in that offense, he'll be better than [Jeremy] Shockey by the start of next year.''

                              “We know that no matter the adversity, be it the lockout, be it the suspension or be it a hurricane, our men will pull together and defend the honor of this city. We’ve shown we’ve been able to do that.” - Jabari Greer

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