Of course bad decisions are not all crucial in the context of the match. However, sometimes they are, and this needs to be recognised if the ICC are to be jump-started into action. The technology is available to achieve little improvements. But then the whole system needs careful thinking.
E.g. the TV ump was called on for a crucial decision in the recent second test between SL and SA in Columbo - all he had to do was tell as small little lie and say 'inconclusive' to the ball being out of bounds, and in terms of the rules that meant the in-form batsman Rudolph was out. One more error to get rid of De Villiers later on, and the result of the match and THE SERIES was changed by error. The problem here was that, with the rules written as they are, the TV ump should not have been a local. (TH Wijewardene)
Another one:
"Ntini being given out lbw" (referring to an error at Edgbaston)
That shouldn't be that important in the context of the game, as the Proteas are down and out if they need Ntini to bat through. However, doing that to Kallis, Smith, Rudolph AND Ntini in one innings, as Bucknor did at Kingsmead, that is highly suspicious if not comically incompetent. It renders the outcome of the match (and, once again, that series) unacceptable.
Do something about the umpiring crisis! Collect data on bad umpiring on worstcricketumpires on ezboard, so that we have one collection of evidence to take to the ICC! England-India and England-pakistan (not to mention the 2005 Ashes) are three instances not yet discussed properly on worstcricketumpires.
http://p067.ezboard.com/bworstcricketumpires