There is little doubt that facing a small object hurled at you from some 60 feet or 18.3 metres, at speeds of over 90 miles per hour or 144+ kms/hr, with the ball swerving or ducking is quite difficult as the physics elaborates.
What cricket does is
- Change the pitcher/bowler every over
- Allow the pitcher/bowler change the angle of delivery by going around or over the wicket
- Makes the ball bounce before it reaches the batter to introduce other dimensions to the ball path, other than pace and swerve
- Keep the same ball wherever possible so that it deteriorates producing other variable effects on ball travel