Watson believes DRS upstages benefit of doubt
"There's supposed to be the benefit of the doubt going to the batsman," Watson said. "Bowlers get a chance to come back and bowl another ball, but for a batsman, if they're out, they're out. DRS, for me personally, makes things pretty complicated when the rules of the game were set up to be as uncomplicated as possible. Batting-wise, if there's benefit of the doubt, the benefit goes to the batsman. As a bowler you accept that.
"So it's going to be interesting to see how DRS evolves. At the moment, there's no doubt that for the amount of airtime the DRS has got over these last three Test matches, it's certainly not working to how it was supposed to be set up to work."
That decision cost Watson the chance to go on to make a big score, for he was on 46 at the time, and although replays suggested it was a very tight call, the DRS had been set up to support the on-field umpire's decision in such circumstances. On one hand Watson was supportive of the DRS for not overturning decisions unless they were howlers, but on the other hand it was difficult for the batsman not to have the benefit of the doubt.
There was one occasion, on the final day at Old Trafford, when the Australians were pleased that the on-field umpire's call was trusted when Kevin Pietersen was given out caught behind, and that the decision was upheld despite no mark showing on Hot Spot. Watson said it was pleasing to see the back of Pietersen via DRS, given the earlier banter between the pair.