The ICC has already assumed that the field umpires are "already" making a "high number of correct decisions". IOW, a "high number of correct decisions" is good enough, irrespective of the number of horrible decisions. It is like saying that if a surgeon is quite good if the operations conducted by him are right 9 times out of 10, the tenth wrong one does not constitute malpractice, let the patient go to hell! Cricket aficionados may not agree, especially those that have watched the insufferable Bucknor. But then, the ICC's approach has always been like this, e.g., it is all right for a bowler to bend his elbow up to 15 degrees, it is not a no-ball.
