The offense is the eleven players whose job is to move the ball and score. It is led by the quarterback, who runs each play, the running backs who carry the ball, the receivers who catch it, and the offensive line that protects them.
What the offense is trying to do
The offense has the ball, and everything it does is aimed at reaching the other end.
It gets four attempts, called downs, to move the ball ten yards. Make the ten and it earns a fresh set and keeps going; fail, and possession usually hands over. The full mechanics are on how downs work, and what a touchdown or a field goal is worth is on how scoring works.
The quarterback runs the show
Every play starts in the quarterback’s hands. He hands the ball off, throws it, or occasionally runs with it himself, and he is the one who gets everyone lined up and pointed in the right direction.
One thing surprises newcomers: he is usually not the one who chose the play. A coach on the sideline did that, and spoke it into a radio in his helmet. What the quarterback owns is the last few seconds before the snap, once that radio goes quiet. He reads what the defence is showing him and, if it will not work, changes the call at the line. That is an audible, and it is its own small drama: eleven players have to hear it, understand it and reset, with the clock running down. How the call gets chosen and sent is in who calls the plays.
Who’s who on offense
Eleven players, split into the ones who handle the ball and the ones who clear the way.
| Role | Job |
|---|---|
| Quarterback | Takes the snap, throws or hands off, runs the unit |
| Running back | Takes handoffs and runs; also catches short passes |
| Wide receiver | Runs downfield to get open and catch passes |
| Tight end | A hybrid: blocks like a lineman, catches like a receiver |
| Offensive line (five) | Centre, two guards, two tackles. Block, and never touch the ball |
Those five linemen are the reason everyone else can do their job. They are also, by rule, not allowed to catch a pass at all, which is covered on positions decoded.
Running plays and passing plays
Almost everything the offense does is one or the other.
A running play gives the ball to a back who carries it forward. It is the lower-risk option: it tends to grind out steady yards, it keeps the clock moving, and the ball is rarely lost. A passing play has the quarterback throw it downfield. It is higher risk and higher reward: the gains are bigger, but an incomplete pass stops the clock and a bad throw can be intercepted.
Good offenses do both well enough to keep the defense guessing, because a defence that knows which is coming can set itself to stop it. The units trying to do that are in how the defense works.
You only get one forward pass
Here is a rule most people never learn, and it quietly shapes everything.
NFL rulebook, Rule 8, Section 1, Article 2 (Legal Forward Pass). The offensive team may make one forward pass from behind the line during each down. If the ball, whether in player possession or loose, crosses the line of scrimmage, a forward pass is not permissible, regardless of whether the ball returns behind the line of scrimmage before the pass is thrown.
One forward pass per play, and only from behind the line of scrimmage. That is why a receiver who catches a ball downfield cannot then throw it forward to a teammate, and why you will occasionally see a player get the ball, look up, and then tuck it away and run instead.
It is also the rule that makes trick plays work. Every double pass and flea flicker you have ever seen is built on throwing the ball backwards first, because a backward pass is not a forward pass and does not use up your one. Get it wrong by a yard and it is a penalty.
The tush push, and the rule that keeps it legal
For a current example of how much a single word in the rulebook matters, look at the play Philadelphia have made famous: the quarterback sneak where teammates line up behind him and shove him forward. The tush push, or the Brotherly Shove.
It looks like it should be illegal, and people keep trying to make it so. The rule it lives under is this:
NFL rulebook, Rule 12, Section 1, Article 4 (Assisting the Runner). No offensive player may: (a) pull a runner in any direction at any time; (b) use interlocking interference, by grasping a teammate or by using his hands or arms to encircle the body of a teammate in an effort to block an opponent; or (c) push or throw his body against a teammate to aid him in an attempt to obstruct an opponent or to recover a loose ball.
Read it slowly and the gap appears. Pulling a runner is banned outright, at any time. Pushing a teammate is banned only in two specific situations: to help him block an opponent, or to recover a loose ball. Pushing the man with the ball straight forwards is not on the list.
So the play is legal because the rulebook bans pulling and never got round to banning pushing. Green Bay proposed outlawing it in May 2025 and the vote fell two short, 22 in favour against the 24 needed, with ten clubs voting against. A further attempt failed and the play remains legal for the 2026 season.
That is worth knowing not because the play is important, but because it shows you how the sport actually works. Teams read the rulebook looking for the thing it forgot to forbid.
Why the linemen stay put
One more rule explains something you can see on every pass.
NFL rulebook, Rule 8, Section 3, Article 1 (Ineligible Player Downfield). On a scrimmage play during which a legal forward pass is thrown, it is a foul if the entire body of an ineligible offensive player, including a T-Formation Quarterback, is more than one yard beyond the line of scrimmage before the pass has been thrown.
Offensive linemen get one yard, and no more, before the ball leaves the quarterback’s hand. Watch a lineman on a passing play and you will see him hold that line almost anxiously.
It is also the tension at the heart of the modern run-pass option, where the quarterback decides after the snap whether to hand off or throw. The linemen have to block as though it is a running play, which means going forward, while staying inside a yard in case it turns into a pass. One step too many and the whole thing comes back.
What the numbers mean
Once you know who does what, the statistics start to mean something. Passer ratings, yards, completion percentage and the rest are unpacked on QB stats decoded, and the wider picture is on NFL stats explained.
Frequently asked questions
What does the offense do in football?
The offense is the unit with the ball, and its job is to move it down the field and score. It gets four downs to gain ten yards, and making that earns a fresh set of four. It scores by carrying or catching the ball into the end zone for a touchdown, or by kicking a field goal.
What are the offensive positions in football?
Eleven players. The quarterback takes the snap and throws or hands off. Running backs carry the ball, wide receivers catch it, and the tight end does a bit of both. The five offensive linemen, a centre, two guards and two tackles, block for everyone else and are not allowed to catch a pass.
What is the difference between a running play and a passing play?
On a running play the ball is handed to a back who runs with it: lower risk, steadier gains, and the clock keeps moving. On a passing play the quarterback throws it: bigger gains available, but an incomplete pass stops the clock and a bad one can be intercepted.
Where to go next
- How the defense works: the eleven trying to stop all of this
- How special teams work: the third unit, and the kicking plays
- Who calls the plays in the NFL: where the play comes from
- NFL downs explained: the four-downs cycle the offense lives inside
- Positions decoded: the numbering and eligibility rules
The passing rules are Rule 8 of the official NFL rulebook, published by NFL Football Operations.
Go to the source
These are the league’s own resources for the rules on this page, all free.
- The 2026 NFL rulebook: forward and backward passes are Rule 8, assisting the runner is Rule 12, published by NFL Football Operations — https://operations.nfl.com/the-rules/nfl-rulebook/
- NFL video rulebook: the illustrated version of the passing and formation rules, with clips — https://operations.nfl.com/the-rules/nfl-video-rulebook/
- Formations 101: how the eleven line up before the snap — https://operations.nfl.com/learn-the-game/nfl-basics/formations-101/