What is off tackle?

Off tackle is a term used in American football to refer to a running play in which a running back takes the ball and runs towards the offensive tackle position. The offensive tackle is responsible for blocking the defense's tackle, while the running back attempts to get through the gap created by the tackle and his blockers. This play can be effective in gaining yards when the defense is expecting a different type of play, such as a pass or a run up the middle. In addition, off tackle plays can be used to set up other types of running plays or play-action passes. Overall, the success of an off tackle play depends on the strength of the offensive line's blocking and the speed and agility of the running back.