It can be useful in short yardage situations,[1] and with large backs.
[2] The most simple form of this play has the strong side offensive lineman step towards the ball and block any defender inside of him.
[3] The fullback will kick out the end man to create the running lane for the ball carrier.
The Maryland I used the 2nd back to lead through the hole and block the linebacker.
The off-tackle play is a key feature of the single wing offense.