NFL Network Super Bowl Replays

[Ed Hickland]

Changes in mechanics tend to come from on high, in this case meaning the NFL. As officials move up they bring back new and different mechanics.

Some of the mechanic changes in my time are: use of the beanbag, especially,to mark spots on loss of possession; the use of hand signals to indicate the number of players on the field; wingman signals to indicate players on or off the line.

As offenses and defenses become more dynamic at the high school level we will start to see more mechanics changes to cover these schemes.