There are 3 sub-categories in the speed phase. Acceleration -This is the most important ingredient in sports. This covers 0-about 45 yards. Absolute Speed -This is the speed that takes over after the 45 yard mark. Specific Speed -This refers to each particular sports pattern which has to be accomplished within a particular position.
Every position needs different requirements.
There may be similar movements, but no two positions have identical movements. Wide receivers run a lot longer distances than an offensive lineman. A defensive back always starts out running backwards. A quarterback is going to run while looking over a shoulder. Linebackers can run either forward, lateral or backward.