"I said I will change the way I speak to the players because they are one year older and are more conscious of what they have to do," he told his personal website. "Then, I hope this season will be the good one."
"The only thing I can say is that we could have won there and when you want to be champion you have to keep in mind that those games make the difference."
The Gunner claims he never criticised Theo Walcott last season and was just misquoted by the media.
"I also would like to comment the "Walcott affair", when I gave an interview to GQ magazine and said good things about Theo, and some journalists twisted my words trying to make me look like a naughty captain.
"Obviously I don't have any problem with Theo, he knows it, but it's a shame to see how the players' quotes can be twisted. But there's no problem at all and there's a superb atmosphere within the squad."