Fascinating. Never heard of it. But yeah, this is basically that -- there is a single set of words being used to describe what are are two different sets of highly correlated things. It generally works pretty well, but there are times when the overlaps cause problems.
A pitcher cares more about how you throw the pitch. An announcer cares more about what the pitch does in physical space and why/how batters react.
Say "slider" (from a righty) and most of us probably have a picture in our heads of a pitch that moves something like 2:00 to 8:00 down & away from the RH batter and a curve as something that moves 12:00 to 6:00 or 1:00 to 7:00. But I would imagine most pitchers here slider and think first of a certain grip and wrist pronation.
Games are won on run differential -- scoring more than your opponent. Runs are runs, scored or prevented they all count the same. Worry about scoring more and allowing fewer, not which positions contribute to which side of the equation or how "consistent" you are at your current level of performance.
Last edited by RedsManRick; 04-19-2013 at 08:01 PM.