From 1996 to 2000, current Auburn football coach Gus Malzahn helmed Springdale, Arkansas' Shiloh Saints. Shortly after he'd moved on, his book The Hurry-Up, No-Huddle: An Offensive Philosophy was released, containing these images as demonstrations of sideline signals that would be easy for high schoolers to remember in the heat of battle.
In Shiloh's case, a Biblical theme worked well, since its players "were already familiar with the Bible and the stories that went with the characters."
While his stops at Arkansas and Arkansas State have likely adapted alternate themes (backwoods computer hacking and deer hunting, respectively), there is no program in the country that would be more suited for a return to using Joseph's many-colored suit as a play signal than Auburn.
Your guesses in the comments as to which Bible stories would correspond best to which Auburn activities. My best guess:
10The third angel sounded his trumpet, and a great star, blazing like a torch, fell from the sky on a third of the rivers and on the springs of water- 11the name of the star is Gene Chizik.a A third of the waters turned bitter, and many people died from the waters that had become bitter.
This David signal would also rank very well in the Sass Olympics:
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