Manchester City manager Pep Guardiola says teams are prepared to take his side on in a manner they did not previously, which will cost City a Champions League spot if he cannot find a solution.
Guardiola did not quite say City, who face Chelsea at home on Saturday, had completely lost their 'fear factor'.
However, as he assessed a torrid season he zeroed in on a change in approach that indicates opponents are not intimidated the way they once were, with teams pressing his side more.
"Everyone came to the Etihad and stayed back," he said. "The first team I saw man-marking was Neil Warnock at Cardiff. Now everyone does it. Everyone comes here, it doesn't matter, man to man.
"They just jump to Ederson or Stefan [Ortega]. You have to adapt, do it better with the ball, otherwise you are not qualifying for the Champions League."
City are currently fifth in the Premier League - 12 points off leaders Liverpool. Towards the end of 2024 they won only one game out of 13 and now find themselves having to beat Club Brugge on Wednesday just to claim a Champions League play-off place following this week's defeat by Paris St-Germain.
Although City have £123m-worth of new talent available for the Premier League encounter with Chelsea, Guardiola does not believe that alone will solve his problems.
He dismissed those who focus on running statistics as evidence of whether a team is performing to its maximum or not, instead pointing out his side have not used the ball well enough.
"Speed is important but against PSG we ran more than them," he said. "Our problem is with the ball. This season it is what we have missed.
"If you have the ball and don't pass properly to your mate, everything is so difficult."
When City won 2-0 at Stamford Bridge on the opening weekend of the season, few would have predicted by the time the return meeting came around that Chelsea would be higher in the table and Guardiola's team would be just a point in front of Bournemouth.
Guardiola believes qualification for next season's Champions League would be like winning a trophy, given the injuries that cost him the services of Ballon d'Or winner Rodri and leave him with one fit central defender this weekend, excluding new additions Vitor Reis and Abdukodir Khusanov.
He also said there was merit in Jose Mourinho's famous claim that finishing second behind City with Manchester United in 2017-18 was one of the greatest achievements of his career.
"There are seasons when there are a lot of difficulties," Guardiola said. "How do you stand up? How do you stay there?
"I remember Jose. I don't know the reality of United but he said many times finishing second in that season was his biggest success. I understand completely."