The UDRS was introduced, supposedly, to eliminate the blatantly obvious bad decisions that do occur on rare occassions but is being abused by the players who use it to try to get reasonable decisions overturned. If they are going to continue with this system some serious changes need to be made to it.
I agree with this - it was supposed to eliminate the bad calls - but now the players are taking a punt on if the umpire got it wrong.
Some things I would like to see put in place...
1. Benefit of the doubt goes to the batsman - on the field this is the case and for stuff like run outs this is the case. But with referrals, why does the benefit of the doubt go to the on field umpire (ie. his decision has to be proven wrong)? I think this would make it a lot simpler - if there is doubt from the replays, the batsman stays.
2. If they are going to use UDRS everywhere, ICC have to figure out how all broadcasters can use Hotspot. This is the most reliable form of checking for nicks and LBW's where bat is involved. But some countries cannot afford this technology and/or the host broadcaster doesn't seem to think it is that important.
I would like to see this process in place...
Check the ball was legitimate, then...
For edges - use Hotspot first, Snicko second
For LBW's - use Hotspot first (to make sure there is no bat involved), then Hawkeye second. Maybe also consider using Snicko to check for bat involvement if Hotspot is inconclusive.
If a decision cannot be made from these, then the Batsman gets the benefit of the doubt and stays.
There always seems to be confusion over which replay the umpire looks at first - if there was a more uniform process in place, then there would be 2 replays, and a decision would be made. If a decision cannot be made from these, then obviously there is doubt. The bad decisions are the ones that are obviously wrong. These are the ones they want to elimante. Simple.
Also, the 3rd umpires need to be more consistent with their LBW calls when Hawkeye predicts how much of he ball is hitting the stumps - so many balls clip the stumps in these decisions, yet some of them are given out and some of them aren't. I reckon if it looks like more than half the ball is hitting the stumps (and bails are included of course), then it's out. Less than half, and it's not out.