Since we know there was no live feed from the camera, you are really suggesting that at the 15 minute half-time break, someone ran that film out, watched the whole thing as well as timed it up correctly with the formation. Studied the play that unfolded and each defensive assignment, thereby understanding the play called. Put all this information together, either memorized it or wrote it down in good detail. All in the hopes that one of these calls would be made again in the 2nd half. And when a call was made, either that person who broke the film down, hooked it up with game tape etc had all 40 or so plays and calls memorized so that he recognized it and got it into the coaches and the players within the 20-40 second time frame he would have from when the signal was given to the snap of the ball. Or he ran through the 40 signal-play correlations he discovered and wrote down in time to get the play call to the offense?
Do you understand how simplistic you are trying to make such a complicated process? And alllll of this incredible memorization, real-time analysis, resources or whatever else in the HOPES that at least one or two calls would be repeated in the 2nd half? Send me some of whatever it is you are smoking PLEASE