Having a good offense means that your team can communicate. Its all about the strategy. Over the years offenses have evolved into more pass orientated games. Quarterbacks are relying heavily on their wide recievers and other players to catch the ball getting it further down the field.
Here are some offensive plays I found:

Offensive plays are made so the players can memorize them. They then choose the best one, the one they believe will trick the defense. It it works it will lead them to score a touchdown or at least move the ball up the field. A combination of plays can be used until the touchdown is reached.