Michael Clarke admits DRS failings Michael Clarke admits England's superior use of the referral system played a role in Australia's agonising defeat in the first Test, but says his team has regained some respect with its gallant performance at Trent Bridge. The Australian captain asked his players to hold their heads high. Having been written off before the series, the team fought back from desperate positions to take the game down to the wire. The Hot Spot image that saw Brad Haddin dismissed with Australia 14 runs short of victory in the first Test. Statistics on both teams' use of the Decision Review System show that the Australians were cavalier with their referrals while the home team used them sparingly and smartly. England used the DRS four times for three successful reviews. Australia used it nine times, but was only successful twice. "I'm not happy with my use, because we haven't got many right," Clarke said. Both teams are using the DRS and in this game especially England have used it better than I have. I need to keep working on that. It's consistent for both teams and as an opposition team that's all you can ask for. Australia's captain Michael Clarke waits for the presentations. It's a bizarre new age indeed when teams are measured by runs, wickets and referrals, but England's approach was vindicated when Alastair Cook still had two reviews in his pocket when Jimmy Anderson's caught behind appeal to Brad Haddin was turned down. Cook, who had heard an edge, asked for a review and third umpire Marais Erasmus overturned the decision to hand England a famous 14-run victory. Australia ran out of referrals when Clarke used his last get-out-of-jail card to challenge his caught behind decision on the fourth evening of the game. During England's second innings, the Australians had no avenue of appeal when Stuart Broad, who went on to make 65, was given not out after hitting the cover off a ball to slip on 37. "That is the way the system is," Clarke said. If I had used my reviews better then I have an opportunity to use it when there is a howler like that. We've still got two umpires on the field. They are the most important people out on the ground and they make their decisions. I have been brought up to live with the decision of those guys. The advantage you have now, especially as a batsman, is that if you think you didn't hit the ball, you have the chance to refer it. Sometimes you find out you did hit it, like in my case, other times you find out you were right. That's how the games is and you learn to live with it. Brad Haddin pats England's James Anderson after England won the first Ashes Test. Neither captain could say how DRS could be improved, but Cook said it was up to captains to take the emotion out of deciding when and when not to use it. I think it's pretty fair as there is a bit of skill in using DRS. You have to have little human element," Cook said. Tactically we have found that we have been quite poor with DRS in the past, in this game we've been a bit better. I'm sure it will swing round in roundabouts at some stage but you have to be careful as a captain. Bowlers in the heat of battle think it is definitely out, and you can waste them. The bottom line with the review system is it does get more decisions right. Well, it should get more decisions right is probably the best way of saying it. Because it's such a big game, it's so important that decisions are right because they impact the game, and I think both sides feel that. There's absolutely nothing wrong with it, because I'd much rather be sitting here with this result right here now because of that last wicket than if we're sitting here and lost, and it had been given not out. That would be wrong for the game. England takes a one-nil lead to Lord's, where the next Test begins on Thursday. Australia needs to win the series to regain the Ashes. Clarke expressed pride in his team, unfancied because of on and off-field turmoil in the months before the Ashes. The Australians unveiled an exciting new talent in Ashton Agar but also valued the experience of Haddin, whose 71 almost won the game, and Peter Siddle, who took eight wickets for the match. The 10th wicket contributed 228 runs in the game - from Agar and Phillip Hughes in the first innings and Haddin and James Pattinson in the second - a record in Tests but an indictment on the top order. "I'm not surprised at how close we got," Clarke said. I hope we've earned a bit of respect by the way we've played, that's what's important. Our team is going to give our all every single time we take the field. We're here to win this series. We know it's going to be tough and we've just experienced that over five days, but for the people that have written us off or did write us off before a ball was bowled, I think we might have changed a few of their minds.