Chelsea have not been stable in their performance for a long time. I don't even expect them to win the Premier League or Champions League this season.
It is not easy for a team like Chelsea, which has been struggling for some time, to suddenly win the Champions League or Premier League. What I expect from Chelsea this season is to establish good coordination among the players and foster good chemistry. The team should be known for good performance in every game and not be an unstable team that surprises fans sometimes. If they can achieve this as a team, then winning a trophy becomes easier.
Chelsea's performance in the last season was not bad. But it is not possible to win the title by performing like this. Chelsea has tried their best to strengthen their squad. They have spent a lot of money. But the team failed to win against Crystal Palace in the first match. If Chelsea wants to win the Premier League title, then they must continue their good performance. On the other hand, it is not possible to guess so quickly whether Chelsea will be able to do well in the Champions League platform. For the Champions League title, good performance is also needed. Often we see underdog teams being able to do well in the Champions League platform.
Chelsea can't win any trophy if they continue performing how they did in there last game against Crystal Palace, because the match was not bad but know one think that the game will probably end in a draw. But let see there next game in the league competition, if they lose i don't think they are ready to chase the league title or try to win other competitions this season. Champions league is a different competition that you can face different club and any team you see in the Champions League is not a weak club, they are all ready to fight to achieve the trophy. So if Chelsea need ucl this season they need to improve more better so that they can challenge big clubs the way they defeat PSG in the CWC. I can says that every season Crystal Palace usually play against Chelsea and they have understood their pattern of playing in the pitch and making Chelsea frustrated and making it difficult to break there defense. I didn't surprised easily because many club in the Epl will always give Chelsea headache because they play always and things change sometimes.