Here is an excellent in-depth article that was posted by SmartFootball.com about understanding coverages and attacking them with the passing game. If you haven’t had a chance to check this site out, it’s one of the best on the net when it comes to the learning the X’s and O’s of football.
Following is an excerpt from the post called “Understanding Coverages and Attacking them with Passing Game” that posted on Thursday, 17 September 2009 , by : Chris.
“There are many qualities that a quarterback must possess. However, the most obvious is the QB’s ability to throw the football. Throwing the football requires a tremendous amount of coordination and teamwork for proper execution. The QB can make up for some deficiencies with proper reads. Whether it is the Pre-Snap Read, Reading on the Move, or Adjustments in routes, the QB’s recognition, anticipation and reaction are based upon his knowledge of the offense as it relates to what he sees.
The QB must make a “Pre-Snap Read” confirming the defensive secondary’s alignment. The PSR provides the QB with help in making the proper throwing decision; i.e., allows the QB to establish his thought process prior to the snap. There will be many times when the QB can determine what the coverage is before the snap. About eighty percent (80%) of the time the coverage will be given away by someone’s alignment in the secondary, typically the second defender inside. Even when the total coverage is not given away, through observation of particular alignments, you will be able to eliminate some coverages or narrow to a “Hard Focus” area. The QB must approach the LOS the same way every play and get his hands under the center. The PSR process includes a “Soft Gaze” left, middle and right. The purpose is to identify (1) the depth of the corners, (2) number of safeties, (3) weakside flat defender, and (4) the number of run defenders (“front”):
- Find the Free Safety (“FS”) and Strong Safety (“SS”) to determine the type of front – seven-man or eight-man. If the safeties adjust to motion, be aware of a possible blitz.
- Find the weakside linebacker (Whip (“W”)). This is a crucial read to recognize an outside blitz. It is the QB’s responsibility to adjust the protection to handle the outside blitz or allow the receivers to read “HOT.”
The PSR is only the first step in the throwing decision. The QB must identify the primary defender (the “Key”) to read (“Hard Focus”) and determine where to throw the ball. The Key is determined by the pattern and the related PSR. The ball is thrown based upon what the Key does within the QB’s line of sight. For example, on a strong side route the PSR must identify the SS. Upon the snap the strong safety can either man-up, cover the flat, cover deep third (1/3) or cover deep quarter (¼), and it is the SS’s action that allows the QB to decide where to throw the ball. Depending upon the route, the SS’s action might change the key (Reading on the Move [“ROM”]) to the Corner (“C”) or FS. The QB will make their throwing decision based upon what happens in his Hard Focus area and the related routes within the “line of sight”; i.e., does the Key rotate, invert or play man. When the QB keys defenders, not receivers, there are fewer throws into coverage.”
To read the full article, please click on the following link - Understanding coverages and attacking them with passing game