"If we do what we have to do, we're going to be closer and at the end we'll win (the title)," said Arteta after a season-ending win against Everton. "When, I don't know. But if we keep knocking and being that close, in the end it will happen.
"There's only one way to do it: you have to be more determined, you have to be more ambitious, you have to have a lot of courage and push every limit in everything that we have. That's the next step.
"First one and most important (plan for the summer) is how we are going to get these players to a different level. That is my first job and after that. If visualising that, we still don't have enough to do that, for sure we will have to do everything we can to fulfil those gaps (with new signings)."
Arsenal's 89 points was just one short of the Invincibles' total from 2003-04. It also would've been enough to win the league last season.
"When you look in the last 15 to 20 years of this league, the competition wasn't like it is today and for sure (89 points) you are champion," said Arteta.
"But it is not enough. This is as well probably we are getting better and better and better and faster because someone is so good that you have to chase it. That is what makes you good as well. That's it. We cannot feel sorry for ourselves guys. We tried, we are improving. It was an unbelievable season again but we are not champions and that is the reality.
"I was there (as assistant manager) when (City) did 100 points so I know what it takes," he added.
"I know what happened and this is the level. No one has to explain what the level is because I was there four years every day and I know what we have to do if we are going to reach there. Not only for one season, but for the rest, but we are on the right path, the right journey and to see the evolution so quickly happening, I haven't seen it before. So, we're on the right trajectory and now we need really to pull the teeth and bite into it because we really want more."