The run and shoot offense usually consists of four wide receivers and a running back. The strategic formation is filled with a lot of short, quick passes, and is usually lead and dominated by the receivers. They change field positions quickly and unexpectedly, moving left and right to evade defenders and get open for sharp, short pass.
Like the name suggests, this offense can be risky and sometimes a bit unorganized because this offense is known for adjusting and changing "on the fly." This means that there is no set formation or positioning for players. This means that the play can look and be performed differently each time because the players have no set place to end up on the field. Because of the versatile nature of the offense, players have to be ready to fill in where needed and seek out open space on the field. They should be able to read the field quickly and move accordingly.
The quarterback has to be exceptionally talented during a run and shoot offense. He only has a few seconds to read the field, (which will never look the exact same twice!), and make a pass before he misses an opportunity for a pass that likely won't become open again.