Reading the quarterback in college football.

I'm currently watching the LSU-Florida game, and it's amazing how the defenses on both sides do not adjust to the quarterback's actions.

The offense (on both sides) will line up for their play for just a second. The quarterback will sometimes try to read the defensive scheme and change the call, but this is where the defenses fail to pay attention. The quarterback will often just walk up to the offensive linemen and give them instructions then go to the running backs and do the same. If he does not signal the wide receivers, the play is a run play. If the backs shift as a result, the original call was a run play to one direction and the quarterback shifted the run direction. Instead of bringing the safeties up for run defense support or even a run blitz, they sit back in the secondary or pull out from the line. I don't get that; if the quarterback is going to throw, the only throwing option is to his running back, but you can easily determine if it's a run play or pass play the second the ball is hiked to the quarterback, by paying attention to the offensive line. If it's a run play, they are going forward; if it's a pass play, they pull back. If they pull back, bring your inside linebacker to jam the running back to prevent him from sneaking out and let the safeties pull out for short coverage.

It's probably the easiest read you'll ever get on defense, and I don't know why they can't figure that one out.