The spread is based on winning 1 on 1's, receivers in the passing game, lineman in the running game. The base plays in the power spread are the inside zone and outside zone read option plays. The read option is used to the offense is able to run the ball with 1 more guy in the tackle box than you can block. The QB reads that guy, usually a DE or OLB. If he follows the RB, the QB pulls it and runs where his gap was. If he stays home to prevent the QB from running, the QB gives it to the RB. Say we have 5 lineman and a TE. The defense would counter with 7 in the box. 1 guy takes the QB. So now it's 6 on 6, plus the RB. That leaves 1 guy for each lineman and the TE to block. Each guy has a 1 on 1 battle, what coaches call "a hat on a hat." If they can't win their battle, the play won't work. See how Ohio Stste dismantled Oregon in the CFB semifinals two years ago. Their front seven won the line of scrimmage and prevented Oregon's offense from finding a rhythm. That is how Ohio State won the game.