Arsenal lacked belief under Arsene Wenger but will have "a great season" under new manager Unai Emery, says former midfielder Santi Cazorla.
Cazorla left the Gunners in the summer to return to Villarreal and is playing again after long-term injury problems.
"We needed to believe in ourselves more," he told Football Focus.
"To believe that we were capable of competing with the big sides in the Premier League and not just settling for third or fourth."
The 33-year-old Spaniard won two FA Cups in six seasons with Arsenal but the closest he came to a title was a second-placed finish in 2015-16, when Wenger's side finished 10 points adrift of champions Leicester.
Arsenal finished fifth in 2016-17 and sixth last season. They have started 2018-18 with three wins and two defeats from their opening five league games and host Everton on Sunday at 16:00 BST.
Cazorla rejected the notion that Arsenal were in "a comfort zone" under former manager Wenger - who was replaced after 23 years in charge by Emery in May - but feels that they could have come closer to success in the Premier League.
"We needed to have made that leap to try and battle it out for the title. There were seasons where you felt like we were in with a shout but then through various circumstances it wasn't to be," he said.
"But I think it's all about having that self-belief, that right mentality. To say 'We believe in this team, we know we have a great squad and we can go toe to toe with the big English clubs.'
"I believe that they will do that and for sure they will keep on improving in the future. They are going to have a great season, they have a great team and I wish them all the best."
Cazorla has never played under Emery, but spoke to the former Sevilla and Paris St-Germain manager this summer before he took charge at the Emirates.
Emery asked Cazorla for his insight on Arsenal's medical set-up, nutrition and also what else he may need to adapt to the Premier League.
"I think it's a club that can improve quite a few things," Cazorla said.
"I gave him all the information I could to try and help him out during his period of settling in and I think he's very happy and I think he's a great manager for Arsenal.
"But everyone really does have to be patient, when you think you've had the same manager for 23 years, a manager who became a real symbol for the club on a worldwide scale and the fans have to show a little patience with Unai, and the team because there has been a lot of changes.
"I believe that if they do things in the right manner, Arsenal have everything required to be a massive club. I'm sure that in the coming seasons Arsenal will be making that step up in quality which will hopefully enable them to be on a level playing field and able to fight for the title and other big trophies."
Sokanola
66
Under Wenger Arsenal were predictable, with Emery every game is handled differently. Change is hard/difficult but constant. Everyone deserves a chance to improve the team, Wenger style was definitely obsolete. In Emery we trust. COYG!
Dimetri22
56
In recent years gunners has lacked in maintaining their standards. Their main reason for is not just old tactics of Wenger but over the years others clubs spending power. Other clubs like ManU, ManCity, Chelsea, Liverpool all these teams are spending huge amount. So there were lacking both in financially and tactically. Emery era has given new glimmer of hope to gunners but still they are not at same level of other English gaints. Hopefully he will build a strong team. Strive for best. Good luck gunners and Unnay Emery.
useless
46
Leading the league more than the other top four teams combined is a nice statistic but mostly meaningless. It says you put a title challenge as you yourself seem so desperate to say. Also, most title challenges end by April and we have a clear picture of who the winner is. That's evident with the last 3 seasons.
wiuklostz
32
Cazorla is correct!! And many fans have known this for years literally! But it says something about many of the players in the industry. For them Football means pay check, easy money, etc. Forget the fans/mugs who pay through their nosed in many instances for season tickets and the like. Take the money, shut up, and let the circus continue. It's a gravy train. Wenger left too much up to the players, he didn't seem to care, so why would they? Everyone aboard the gravy train except the fans, and TV license paying public who can't afford their stadium seat prices etc. It's not a good look, and in some ways for a number of players, it appears they are still riding this train. Look at Spain!! Why is it so many footballers are being handed suspended jail terms for tax evasion? And it's particularly the mega stars, worlds best who are being publicly hung out for all to see, so would this mean that it's common place amongst footballers in Spain? Was the fact this can be done in Spain a major draw for La Liga for players. Money is good for the game if utilised properly. but it's also the weapon that will destroy football if let to get further out of control, and that's not Football!!!
Hgame
26
Arsenal are in real danger with this revelation from Santi, i always had a doubt on the team doctors along with Wenger giving non answers to simple questions when asked. The Welbeck issue comes to mind and how his team dealt with the task. The Cazorla story aides to the sacking of Wenger and his team. If this gets more coverage and Arsenal will be in more trouble.