The opinion that the fielder cannot change his position when the bowler is in the delivery stride has always gained a lot of opinions. Earlier, a fielder was not at all allowed to change his position. Slowly and gradually, this rule has been modified to suit the current style of game.
The fact that cricket has become batsmen-friendly means that bowlers are, most of the times, on the wrong side of the pendulum. Because the modern-day batsman can change his batting stance when a bowlers is in his delivery stride, the fielders have also been allowed to shift their position according to the latest rules of the game. This practice is mostly followed by fielders when the batsman intends to play a switch-hit.
In such situations, it becomes really important for the fielder to be mentally present in the match because this is only possible when he anticipates the movements and the thought process of the batsman. Watch the full video to watch the Top 5 brilliantly anticipated catches in cricket: