regarding the stork head bob, i actually tried to take a look at this after the game by analyzing every patriots snap frame-by-frame. unfortunately, it took me a long time, so i only got a third of the way through. from the 31 plays i analyzed (out of 93 total patriots plays), there wasn't any discernable pattern i could see.
my methodology:
- view each play a few seconds before the snap
- note the game situation--down & distance, under center (UC) or shotgun, play clock when the ball was snapped, result of play, QB pocket
- note the snap pattern (see below)
- measure the time that stork's head was in the down position
- measure the time from when stork's head was fully up to the start of the snap motion
there were three different snap patterns:
DOWN-UP-PAUSE-SNAP (used 20 times)
DOWN-UP-SNAP (used 5 times; the snap was simultaneous to raising the head)
UP-SNAP (used 1 time; stork's head started from the down position)
the numbers below the "Down" and "Pause" are the number of television frames; there are about 30 frames-per-second, so divide that number by 30 to get the time in seconds. the "Down" period varied from 5 seconds to 0.2 seconds; the "Pause" period varied from 0.6 seconds to 0.03 seconds.
in the 31 plays i charted, there were 20 plays that were either a pass, a scramble, or a sack. of those 20 plays, there was 1 sack, 3 knockdowns, 1 hit, 5 pressures, and 10 clean throws.
some things i notice:
- i can't discern any pattern in the snap, either the pattern or the timing. maybe that changes in the last 60 plays.
- the pressure starts almost immediately, from the 5th patriots snap; it's doubtful they picked up any "tells" that quickly
- most plays were snapped with less than 10 seconds left on the play clock; the closer the play clock approaches 0, the easier it is for the defense to anticipate the snap
- there were only 6 run plays; lack of a run game allowed denver to play the pass
maybe one day i can complete the analysis. you can see what i did below: