Fielding Yost, Football for Player and Spectator… (1905)
“ The simplicity of the code should always be such that every member of the team can quickly grasp the meaning. Complicated signals necessarily make a team slow. Not only does a quarter find it difficult to accurately and quickly call the plays, but the men themselves will also have trouble in carrying out the complex commands. To secure quickness and smoothness of play it is imperative, even with the plainest signals, that each man on the team shall thoroughly know and understand each command and be able to respond as readily, as he would to his own name and with just as little thought. ”
