The simplest fix isn’t always correct.
The Baseball Prospectus staff responds to reader mail about Rick Peterson, Todd Zeile and more.
Rick Peterson: The goal is for every pitcher to master the delivery. We have a comprehensive program based on drills and throwing programs to teach that. The core of efficient delivery theory comes from the American Sports Medicine Institute (ASMI) lab of Dr. James Andrews. Last year, we had Tim Hudson and Barry Zito down to work with Dr. Andrews.