In American football, a smashmouth offense is an offensive system that relies on a strong running game, where most of the plays run by the offense are handoffs to the fullback or tailback. It is a more traditional style of offense that often results in a higher time of possession by running the ball heavily. So-called "smash-mouth football" is often run out of the I-formation or wishbone, with tight ends and receivers used as blockers. Though the offense is run-oriented, pass opportunities can develop as defenses play close to the line. Play-action can be very effective for a run-oriented team.[citation needed]