Some people in real life and on the interwebs are really testing my patience right now. Cover 2In traditional Cover 2 schemes, the free safety (FS) and strong safety (SS) have deep coverage responsibilities, each guarding half of the field.  The Tampa Bay Buccaneers, Minnesota Vikings, Chicago Bears, and Detroit Lions all run or have run a variant of this defense called the Tampa 2. In the Tampa 2 defense, a third player (usually the middle linebacker) plays a middle zone, guarding an area closer to the line of scrimmage than the safeties but farther out from typical "underneath" pass coverages. The Tampa 2 defense actually originated, at least in its earliest variant, with the Pittsburgh Steelers during the 1970s. Cover 2 can be run from any seven-man defensive front such as the 3-4 and the 4-3 defenses. Various kinds of "underneath" coverages played by cornerbacks and linebackers may also be implemented. For example, "Cover 2 Man" means the two safeties have deep coverage responsibility while the cornerbacks and linebackers follow their offensive assignment in one-on-one coverage. The San Diego Chargers inherited a base Cover 2 Man 3-4 from former coach Wade Phillips. Cover 2 can also be paired with underneath zone schemes: "Cover 2 Zone" refers to two safeties with deep coverage responsibility, but now the cornerbacks and linebackers drop into specific coverage zones where they defend passes only in their assigned area. In cover 2 the cornerbacks are considered to be "hard" corners, meaning that they have increased run stopping responsibilities and generally defend against shorter passes, although if two receivers run a deep route on a certain side of the field, that side's corner has deep coverage responsibility as well. It also relies heavily on the "Mike" (Middle) linebacker's ability to quickly drop deep downfield into pass coverage when he reads a pass. A variant of cover two is the Inverted Cover 2, in which either right before or after the snap the corners "bail" out while the safeties come up - in effect switching responsibilities. This strategy may be employed to trick a quarterback who has not correctly interpreted the shift. However, the main drawback is that the middle of the field is left open. AdvantagesThe advantage of cover 2 is that it provides great versatility to the defense as the corners can play run, short pass, and deep pass with the confidence that they have support from two deep safeties. DisadvantagesThe main weakness of the Cover 2 shell occurs in the middle of the field between the safeties. At the snap of the ball, many times the safeties will move toward the sidelines in order to cover any long passes to quick wide receivers. This movement creates a natural hole between the safeties that can be attacked. By sending a receiver (usually a tight end) into the hole, the offense forces the safety to make a decision: play the vulnerable hole in the middle of the field or help out on the wide receiver. The quarterback reads the safety's decision and decides on the best matchup (i.e. which mismatch is better: tight end vs. safety or wide receiver vs. cornerback). Another disadvantage of Cover 2 is that it leaves only seven men in the "box" (the area near the ball at the snap) to defend against the run. In contrast Cover 1 and Cover 3 usually leave eight men in the box. A potential problem with the Cover 2 is that defensive pressure on the Quarterback must be provided nearly exclusively by the front linemen as all other defenders are involved in pass coverage. If the defensive linemen do not provide adequate pressure on the Quarterback, the offense is afforded plenty of time to create and exploit passing opportunities. Blitzing in the Cover 2 often creates greater areas of weakness in the defense than other coverages. Thus, unsuccessful blitzes can prove to be more productive for the offense than in other schemes.