The chess match between Offense and Defense occurs on every play. Show a certain formation and fake, counter or actually run the play straight ahead. Show a blitz, or coverage, fake it, or actually send them. There are audibles at the line that can disguise or change the play on both sides of the ball resulting in a back and forth between the two teams. Take something away, or give your team a numbers advantage at a specific spot on the field. In the match-up with Ole Miss this was evident on many occasions including the play shown below.
Ole Miss has the ball on their first drive at midfield. Arkansas has forced a 3rd down and is looking to gain momentum with a big stop up 3-0. Defensive Coordinator Chris Ash calls a defense that he has had considerable success with on 3rd down this season. It removes the interior DTs and adds 2 DBS to the field. Some call it a "Psycho" front, not sure what they call it currently.
The Razorbacks rush 3 with wide DEs Trey Flowers and Chris Smith in addition to Brooks Ellis in the Middle. This leaves 8 in coverage on the 4 Ole Miss WRS. The Deep safeties are not visible in the picture and are playing at least 15 yds off the ball.
Donte Moncrief runs an In route for a gain of 17 yds and a first down against several Arkansas defenders who are unable to make a play on the ball. (Familiar theme for the 2013 season) Knowing that Arkansas will have to sub in more down lineman Freeze calls a play as soon as the ball is spotted. Communication breaks down and Arkansas is flagged for 12 players on the field. The 5yd penalty itself was not that significant, but the fact that Ole Miss went Hurry up pace immediately after resulted in the package being scrapped for the rest of the game.
If only the Razorbacks could use 12 players in a 4-3-5 formation all year!