The Premiership is well and truly back with a bang, and Arsenal began ceremonies by making all Gooners a nervous wreck with a nailbiting 4-3 win.There was much on display to worry about, especially at the back, but in attack there was plenty to wax lyrical of, with some really great play linking our forwards. The team sheet before the game should have given us all fair warning that there would be drama, and our makeshift defence were the culprits.Rob Holding, Nacho Monreal and new boy Sead Kolasinac were our back three, and the lack of chemistry was evident, especially when passes were played in between them for the voracious Jamie Vardy to run onto. It was Arsenal who made their mark first though, and it was an exquisite finish from record signing Alexandre Lacazette that put us a goal up. His debut goal came from an Elneny cross and he had a milisecond to react. What a reaction too, and his bullet header found the bottom corner.Minutes later though, Leicester drew level. A short corner was eventually played in and Harry Maguire headed the ball back in from the byline. The loose ball was headed in from close range by Okazaki with Petr Cech floundering.Four minutes and the scores were level and it was a blistering start. It was at this moment that we saw Leicester's gameplan - one that has not changed for two years. This revolutionary piece of footballing acumen saw Leicester boot it forward for Vardy to chase. It was working too, with our back three unsure who should go to the England striker.Twenty nine minutes in, the Foxes were a goal up. A wide ball across goal and Vardy had stolen a yard and finished from close in. Our defence should never have let it happen.We hammered at Kaspar Schmiechel's goal but to no avail, until just before half time. Leicester had dropped very deep, and a ball was played into Lacazette with his back to goal. His strength allowed the ball to squirm through to Sead Kolasinac who squared for Welbeck to finish. An excellent time to score and at half time we drew our breath. 2-2.It took eleven minutes for Leicester - and Vardy - to score again. A corner was winged in and Vardy again ghosted past our players to flick in a near-post header. Cech coming out for absolutely nothing, Xhaka just watching as Vardy whizzed past him.3-2, and now the pressure was cranking up, both on Leicester's goal and in the stands. We were unlucky at times, but to no avail. Wenger changed things up at his signature time - the 67th minute - with Ramsey and Giroud coming on for Elneny and the beleaguered Holding. It changed our setup, with our team opting for a 4-2-3-1 with Giroud up top and Lacazette out wide. Leicester were getting desperate, much like us all. On the 83rd minute, Xhaka got a pass right and he found Ramsey lurking at the back post. The Welshman's first touch was delightful, putting it just in front of him with the outside of his boot. His shot was well placed and powerful - and we finally had our equaliser. Not to be undone, his fellow sub then went one better and scored the winner. Xhaka's corner was put into the danger zone and Giroud outmuscled Maguire and with the strength in his neck, smashed a header in off the angle of the woodwork. We saw out the game quite comfortably, and three points, somehow, was bagged. A few salient points though.Elneny and Xhaka put a shift in, but they need to work on their partnership. Also, Xhaka needs to move the ball quicker at times.Ozil is off the boil and Wenger was right, he was a gamble to play before kickoff. It didn't pay off this time, but his positioning was where it needs to be, he just needs to work on his radar.Holding had a tough game, but patience must be shown. He has what it takes, but he has a lot to learn. Oxlade-Chamberlain worked really hard, but his final ball needs to be far better. Still, his performance was a positive one.There is work to be done, but we've got goals in this team. Tighten things up and watch us go.