There is a difference between speed and quickness. Speed should be thought of as how fast you can run in a straight line. Quickness should be referred to as how you can shift from one direction to another, or in the same direction, as in side to side.
Quick shifts and movements side to side are referred to as lateral speed. Lateral speed is critical for high level field performance. The reason is because often running in a straight line is unavailable. Or, if it is available, it is because we executed quick lateral movements to create an open lane to run through. Basketball is a great example. Basketball players normally have a defender in front of them, preventing them from dribbline/running straight to the basket. However, if they can move sideways, or convince the defender that they are moving sideways, they may be able to seize upon a lane that allows them to utilize their straight line speed to the basket.
There are tools that develop lateral quickness. One tool that we found is the Pro Lateral Accelerator. Tools such as this are excellent at both targeting and then developing the precise muscles required to make such movements. It is important to note that weight room excercises often don’t target these muscles directly. Therefore, these tools play a very important role and should be used to develop and increase overall quickness.