Sunday's defeat at Trent Bridge was a very bitter pill for Australia to swallow, particularly as they got so close to victory.
Error
Naturally after some of the scenes we witnessed at Trent Bridge, every decision involving the DRS system will be scrutinized even more closely than before.
The system on the whole works well but you can't account for human error, which meant that there were one or two controversies in the first Test.
England used their reviews pretty well - they seem pretty used to it now - but on reflection Australia will feel that they were a little bit hasty with a couple of their reviews, particularly given they had none in the tank for the Stuart Broad 'dismissal'.
So they'll hope to use the system better but the system itself works fine. You are never going to get a situation where you get 100 per cent correct decisions but I think the stats show that we are getting more and more correct decisions.
Watch the first day of the second Test between England and Australia from 10am on Sky Sports Ashes HD and live on the Ashes Event Centre, available via the Sky Sports App.
