The most critical part of all of this is bringing it together to get hitters out. Enter tunneling. The idea of tunneling is getting two different pitches to travel down the same path as long as possible, ideally to the point where hitters have to decide to swing or not. Having elite stuff will get hitters out at a lot of levels. Tunneling becomes a much bigger factor as players get better and begin to have a real approach at the plate. If a pitcher has a fastball t [...]
