As described in Section 5, Calling the Offense, placing your team in
detailed mode allows you to make offensive and defensive play calls in a
manner consistent with professional football. A defensive call consists of
these parts:
Formation Required
Formation Shifts Optional
Coverage Optional
Stunts Optional
Special Assignments Optional
Blitzes Optional
Individual Man Optional
Coverages
Only the defensive formation is required. However, if nothing else is
called, the players won't do anything. To make a defensive call, you must
enter a formation. You may also enter a series of blocks, each of which
specifies some aspect of the defense to be used.
The following paragraphs describe each of the defensive blocks.
Formation
The defensive formation consists of two digits followed by an optional
shift character. The first digit specifies the number of defensive
linemen, and the second digit specifies the number of linebackers. The
number of defensive linemen must be either 3 or 4. The number of
linebackers must be either 2, 3, or 4. These are the legal defensive
formations:
32 33 34
42 43 44
Because there are eleven players on a team, the defensive formations specify from three to six players other than linemen or linebackers. The players that are not either linemen or linebackers are divided between:
Corner Backs
Safeties
Backs
There are always two corner backs. The number of safeties and backs
depends upon the formation. The defensive positions are named as follows:
Linemen: Right End -- RE
Left End -- LE
Right Tackle -- RT
Left Tackle -- LT
Nose Tackle -- NT
Linebackers: Weak Outside -- WO
Strong Outside -- SO
Weak Inside -- WI
Strong Inside -- SI
Middle Inside -- MI
Cornerbacks: Right Corner -- RC
Left Corner -- LC
Deep Backs: Strong Safety -- SS
Weak Safety -- WS
Strong Back -- SB
Weak Back -- WB
Middle Back -- MB
Right and left refer to the defense's right and left. Figures 6-1 through
6-6 show the alignment of the six basic defensive formations.
The normal defensive alignment of linemen and linebackers generally follows
that shown in Figures 6-1 through 6-6. The alignment of the corner backs
is on the widest offensive receiver to each side. The alignment of the
remaining deep backs (safeties and backs) is evenly distributed between the
corner backs.
The normal defensive alignment for the linebackers and deep backs can be
affected by the type of coverage that is called. If zone coverage is
called, the alignment is not changed from the normal defensive alignment.
However, if man coverage is called, the defenders may shift to align with
the receivers they are assigned to cover. If the normal defensive
alignment positions the defender close enough to cover the receiver, no
shift is performed. However, if the distance to the man to be covered is
excessive, the alignment of the defender is shifted closer to the receiver.
Before describing the optional shift character, the definition of the
offensive strength must be reexamined. As described in Section 5, Calling
the Offense, the offensive play call includes a strength -- right or left.
However, the offensive play call may specify receivers shifted from the
normal offensive strength position.
As far as the defense is concerned, the offensive strength is the side
which contains the most receivers. This is not necessarily the strength
that was specified when the formation was called. When the defensive
alignment is being determined, Head Coach evaluates the number of receivers
to the right and left of the offensive formation and sets the strength
accordingly.
After specifying the basic alignment (34, 43, etc.) you may specify an
optional shift character. The shift character specifies a shift of the
defensive linemen in one direction, with a corresponding compensating shift
of the linebackers in the opposite direction. The shift characters are:
O -- Over, toward offensive strong side
S -- Strong, toward offensive strong side
U -- Under, toward offensive weak side
W -- Weak, toward offensive weak side
L -- Left, toward defensive left side
R -- Right, toward defensive right side
For example, a "43O" (43 with "O" or Over shift) means a 43 alignment with
the linemen shifted to the offensive strong side, and the linebacks
compensating to the weak side. Figure 6-7 shows a "43O" applied to an "OL"
offensive formation.
Figure 6-8 illustrates the offensive formation of ORHBWL (Open Right,
HalfBack Wing Left), defensive formation of 34R. The "R" instructs the
linemen to shift to the defense's Right and the linebackers to compensate
by a shift Left.
The O, U, L, or R can be applied to any defensive formation.
Following the basic alignment and the optional shift, you may specify a
"G" to have the defensive linemen play in the "gaps" between the offensive
linemen. The linemen will choose a gap, either further inside or outside.
You cannot control which gaps will be played. For example:
34G -- 34 alignment with linemen in gaps
43SG -- 43 alignment, shifted to strong
side, with linemen in gaps
Pass Coverage
After you specify the defensive formation, there is a series of optional
assignments called blocks, each preceded by a period. The first block that
you must call is the pass coverage block. This ensures that you have
specified an assignment for all defensive players.
As explained in Section 4, The Playbook, there are two basic types of
coverage: man (or man-for-man) and zone. The block specifying man
coverage begins with ".M", and the block specifying zone coverage begins
with ".Z". Many coverages are combination defenses that include both man
and zone coverages.
When a defender has been assigned a zone, the zone is usually a circle,
with possible extensions, either deep or toward the sideline. The size of
the circle and the width of the extensions depend upon the ability of the
defender. The better the defender, the bigger the area that can be
covered. With extensions, the defender is responsible for receivers within
the circle, as well as a rectangle that extends to the sideline or down the
field deep.
The zone is centered about a point known as the zone drop. When the ball
is snapped, the defender moves to the zone drop to establish the zone.
Head Coach provides four types of zones:
Pick Zone -- Area to cover is a circle around
the defender.
Side Zone -- Area to cover is a circle extended
to the sideline.
Deep Zone -- Area to cover is a circle extended
down the field.
Corner Zone -- Area to cover is the outside corner
of the field.
These zone types are shown in Figure 6-9.
Man Coverages
A man coverage specifies one defender for each offensive receiver.
Normally the cornerbacks (CB) cover the receivers that are the widest to
each side, leaving three receivers. You may choose how to cover the
remaining three receivers. These choices allow for desirable or
undesirable matchups, or present different coverages to the offense.
Head Coach provides four man coverages that can be used for each of the six
basic defensive alignments. The basic difference between the four
coverages is which defenders cover the interior receivers. The four types
of man coverages are:
O -- Outside LB cover interior two receivers.
I -- Inside defenders cover interior two receivers.
L -- All receivers are covered by linebackers.
B -- All receivers are covered by backs.
All defenses have more than five pass defenders. With the five offensive
receivers covered, some defenders still need an assignment. The standard
O, I, L, and B coverages assign zones to those pass defenders that do not
have a receiver to cover man-for-man. Because some defenders do not have a
specific receiver to cover, special assignments can be made to those
defenders, removing the zone. For example, a defender in a man coverage
defense that is assigned a zone may be reassigned to blitz without leaving
a receiver uncovered. A zone man within a man coverage also may be
instructed to double cover a receiver ( be assigned to a receiver covered
by another player).
To determine which defenders will be covering which receivers with the