I agree, Umpire's decision, that might turn a match one way or the other, should be open to review, in case of any misjudgment or partisan politics. For this affects the loosing team members career, countys reputation and the millions of fans expectation. Justice is essential. But that appeal should be some 2/3 per match, so that the appealing team do not run out of appeal options for obvious judgments. Finally Umpires shouldnt get humiliated or decisions reversed without given a chance to address, for this will destroy the game. The Man in-charge always keeps the show going-whether its the game umpire, or your PhD thesis professor or your school teacher. They should be respected for their unconditional active interest-something they don't get paid for.