The term is used in football to describe many different aspects
of the game; it could be an individual player's role or a spot on
the field. It may describe the role of a player on the team, such
as quarterback or safety, both of which are positions on a football
team.
It may also be defined as a specific area on the football field.
For example, in a goal line formation, all defensive players will
occupy a specific position on the field. In this usage, the
position they play on the team is unrelated to the space they
occupy on the field. This is in stark contrast to typical behavior;
football is one of the few sports where position played also
determines where they are positioned on the field. Another related
usage refers to where on the field the team and/or ball are
located. This last usage is more commonly known as "field
position."
Since a football field is so big, positioning is extremely
important. As previously mentioned, a players role on the team
often determines where on the field should be positioned. This
enables players to focus on their area of the field and allows the
team to work together with minimal communication.
For example, on a kickoff, the team kicking the ball will rush ten
players down the field to prevent a return. Each of these players
has a "lane" on the field they are responsible for. If a player is
out of position, they put their entire team at risk because the
offense will try to take advantage. In the NFL, the offense is
typically successful in accomplishing this.