The role of the pitcher and the types of pitches have really changed in baseball's 150 year history. Terry McDermott shared some of those changes with WDUN's Bill and Joel as he discussed his latest book, "Off Speed: Baseball, Pitching, and the Art of Deception".
http://accesswdun.com/article/2017/5/537913/listen-off-speed-baseballs-150-year-search-for-the-perfect-pitch