Arsenal manager Unai Emery has suggested that some players will have to leave the club following their 4-1 loss to Chelsea in the Europa League final in Baku.
The crushing defeat means Arsenal will not be competing in next season's Champions League after their fifth-place finish in the Premier League, with the club instead facing a third successive year in the Europa League.
As a result, Arsenal may now need to offload some players in what could be a busy summer in the transfer market.
Aaron Ramsey is already heading for Juventus, Petr is set to make an expected return to Chelsea as the new sporting director and Danny Welbeck is leaving the club with his contract set to expire. Meanwhile, Denis Suarez is returning to his parent club Barcelona after barely making a ripple during his loan spell.
More pressingly, however, the likes of Nacho Monreal, Carl Jenkinson and Stephan Lichtsteiner are yet to be offered new deals, while captain Laurent Koscielny is entering the final year of his current contract.
"Our idea is to continue to carry on and improve with the young players that have arrived," Emery said. "Maybe some players need to leave but it's not the moment to speak about that."The Arsenal boss continued: "We have the possibility for a lot of players to improve. We have young players getting the first experience of a final and I am positive for our future with young players getting better in our way.
"I am very proud of our work, not very proud to not achieve our target, but proud of our work because I think the players did all they could to achieve our target and we are closer to other teams. The next year we can continue with the same team with some players coming to help us get better.
"We have big players with experience and some young players. This year we will use to be closer to the other teams. The next year we need the same idea, to add some new players, but it's the same way as this year, to do one step more."
Asked whether missing out on the Champions League will impact Arsenal's summer transfer plans, Emery said: "Maybe. But we are a big team and Arsenal is a big name in the football world and a lot of players want to play here.
"We need in this process to be strong in our idea and our way. That is the way we started this season. The idea was to get more competitive as a team and be closer to the teams. We did that but at the moment it's not enough for our targets, but the next week and the next year our idea will continue in our mind.
"I don't know for transfers for next year but the club is working to do everything we need to improve."
Arsenal had the better of the opening exchanges in Baku but slumped after half-time as Chelsea scored four times.
With the Gunners trailing 4-1, Mesut Ozil was substituted and replaced by youngster Joe Willock.
"The first half we had possibilities in the match and we had some chances to score. We didn't concede a lot for them, one clear that Petr Cech saved very well," Emery added.
"The second half the idea was the same, to carry on our game plan, take our moments to score, but they scored the first and that was important in this match. After that you need to play with calm and we made some mistakes and they have very good players to use these mistakes to make chances and score."
Nicholas: Every defender must go
Charlie Nicholas told Sky Sports News: "I wouldn't keep any of the defenders. Maitland-Niles I feel sorry for because he's not defensive-minded, he's more of a central midfield player. He's a good athlete but he's not getting taught how to defend by these players who are on survival courses.
"Koscielny's been in the deep end now for three years. Arsene Wenger, when he started playing Monreal at centre-back we knew Arsenal were in trouble. I'm sorry to criticise individuals because they give every ounce that they have but they're not good defensively, I would let them all go whatever it takes.
"I don't think it will take £150m to get them out and rebuild and build a new dynamic back four. The genuine aspects of it is I think £60m-£70m would make it better than it currently is.
"We have a decent goalkeeper but we need pace and younger legs at the back. Bellerin and Holding will come back. It's time to use the younger players, like Nelson and Willock. But defensively everything must be pin-pointed to sort the centre of defence and a left-back."
Huge rebuilding job still awaits at Arsenal
Analysis by Sky Sports' Adam Bate:
"Emery has spoken of a desire to play 'chameleon football' and be able to transition from possession football to counter-attacking football depending on the situation. But that can appear disjointed when, say, Pierre-Emerick Aubameyang and Mesut Ozil prefer differing styles.
"Some supporters have been appreciative of this willingness to adapt after the dogmatic approach of Arsene Wenger. Others crave the sort of commitment to a clear philosophy that has brought such success elsewhere. Emery is still searching for balance but this game showed that he is yet to find it. Arsenal had the ninth best Premier League defence for a reason." (Read the article in full)
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