The Gunners saw off West Brom on Saturday with relative ease at the Emirates Stadium, with Robin van Persie once again performing with aplomb in a 3-0 victory. The Arsenal skipper netted the first and then turned provider for both Thomas Vermaelen and Mikel Arteta in a comprehensive team performance. The north Londoners have now won four on the trot and, while happy with his side's recent displays, boss Wenger believes there is more to come. "I think we have made some improvements, that is for sure," the Frenchman said. "There is still some room for improvement but I have always said 'come back in December' because, for us, the real test we knew was Chelsea. "After winning a big game we had to see if we could repeat that performance and then get the consistency from now on. "Of course we are not at the same level as were one month ago but we still have some work to do." Not only did yesterday's comprehensive victory propel Arsenal onto 19 points, but it also gave them a positive goal difference for the first time this season. "Well, we put ourselves at a big handicap with the 8-2 at Manchester so we had a mountain to climb," Wenger said. "I was not used to seeing that as well. "It was a shock every time when you see a minus in front of your goal difference. "That could make the difference at the end of the season so not only is it the first time we have a positive goal difference, but if you look at the teams that are just above us there is not a massive difference. "We are plus two, they are plus four so that is catchable." Arsenal's defence has come under much scrutiny this season thanks in no small part to the fact they have conceded 21 Premier League goals already. Wenger admitted yesterday's clean sheet was a welcome bonus for his side and was full of praise for his defence. "I expected [Peter] Odemwingie to play so I opted for two centre backs who are quick," he said. "He didn't play but they worked very well together. "[Vermaelen scored but he] should have got a second goal from a header. "I like centre backs who scores goal,s but I like it in when everybody is scoring goals. "I felt that [Carl] Jenkinson had a very interesting game, with the quality of his defending and quality of his crossing. "The pace of his improvement is very interesting and his energy level is absolutely amazing." Counterpart Roy Hodgson was less impressed with his side's quality, admitting the two-goal half-time deficit was too much for West Brom to overturn. "It is when the goals were scored that is important," the Baggies manager said. "The first goal came from a free-kick situation the referee decides is a foul from the centre forward on the centre back. "I would respectfully point out that it could have quite easily been the other way round. "I would even as far as suggesting it should have been given the other way round. "From the quick free-kick we got caught out and they scored the first goal. "The second is somehwat unfortunate in the sense that [Graham] Dorrans should cleared the ball, but tries to play out of trouble and concedes the corner. "Then from the corner kick [Chris] Brunt slips over and, had he not, he might have prevented the cross and we would have gone in 1-0, which would have been a bit easier. "But we were playing against a good team and, unfortunately, we had to accept at 2-0 it would always be a difficult task. "In the second half the best we could do, I thought, was stick to our guns, which we did."
