Ask SpoFi: Pitcher-Catcher Signal Systems in Baseball: Had a few questions that my Google search didn't quite satisfy, and then realized I was asking in the wrong place....the collected baseball wits of SpoFi would know!
Do all pitchers and catchers (speaking pro ball here) on a team use the same set of signs? Would each team have its own system of signals (like a private code), that it then teaches at all levels of the farm system? Or does each team across the entire league generally use the same set of signs, and thus the goal becomes simply to hide the message being transmitted?
Can anyone suggest good resources on the history and evolution of signals in baseball? Any other notes that might be of interest to this topic?
Thanks for any help you can offer!