Originally Posted by Brutus
In theory, it's a fine idea but in practice I'm not sure it goes over too well.
While the technology might permit that right now for Major League baseball, strike zones cannot be called like that in Little League, Babe Ruth, high school or college. So basically you're asking a player to change a batting approach they've probably used their post-adolescent lifetime, and alter it because you're essentially changing the strike zone on them.
I suspect college, at least D-1, would adopt the same system. As for lower levels, umps genuinely want to get their calls right. I've always been of the opinion that the strike zone is more strictly enforced at lower levels. I know a lot of Little League coaches stress that kids should work above the belt. They get the call and if the kid has a good heater it's nearly impossible to hit. It's the kids who can hit that pitch who go on to star in high school and then get a crack at playing at higher levels.
Anyway, players are constantly adapting to changing strike zones and making batting stance adjustments as they learn the game. Locking in the zone in the pros isn't going to trip them up.
Technically the zone is set up so that the hitter can't cover the whole thing. The pitcher needs room to operate within the zone. It's a constant, shifting fight over limited real estate.