Greenmonsters
Wannabe Duck Boat Owner
IMO, if a pitcher doesn't have the control to live on the edges, then you might as well have a monkey calling pitches.
IMO/IME your monkey, many pitching coaches/instructors, and the majority of FP coaches calling pitches don't recognize and appreciate the value and effectiveness of changing speeds. Rick Pauly's "effective speed" thread provides valuable insight into what changing speeds entails.