When players fail to stretch to the shot when clearing the ball, they can not clear to the T fast enough. They will be busy trying to get away from the line of the ball, often moving back to the T via the wrong route. Incorrect movement affects breathing. Little steps force the short shallow breaths which accelerate tiredness. Short steps involve NO stretching patterns so there is no flow to the game, resulting in a rushed frantic style with little time to consider tactics.
Technique is restricted causing errors to occur when under pressure.
Incorrect movement can take players to a certain level if they have speed and a good eye for the ball. However it will stop them short when playing against a good astute tactician who will pull them in as surely as a fish on a line. Eye injuries Govt.