DIAGRAM: The offensive line uses turn-back protection. The FL runs a slant press route 7 to 8 yards deep into the end zone and then works his way parallel along the goal line until the QB gets past the TE. At that point, the FL reverses field and breaks toward the back corner of the end zone. The TE runs directly toward the LB, pushing him deeper, then turns back, rubbing off him. RB1  blocks the play-side DE, while RB2 runs to the play-side flat. The QB reads a progression of A) RB in the flat. B) Either the TE or the FL C) Runs it in to the end zone himself.

Most teams play man defense on the goal line, so it is next to impossible for the LB to cover the RB in the flat. If the defense is in a zone look, then you are “high-lowing” the flat defender with the QB on the corner with the ball.
—Gerad Novak, Head Football Coach,
Conestoga Valley High School, Lancaster, Pa.