Chelsea are doing much better than bottom of the table teams. Their level hasn't stooped so low that they will be relegated so easily. They have lot of good players in squad and I think they have lot of potential to get back on track again. The team chemistry is just not upto the level that a big 6 team should have inn Premier League. Yeah they also need to make some good signings in area where they lack, for instance on defence (particularly centre back).
I see that Chelsea's performance still cannot be said to be "much better" because, up to now, they are still in 12th place at the top of the standings, and in every match they have difficulty achieving victory. In their last match against Everton on December 10, they also did not produce good results. well, and still disappoints his fans. On December 16, Chelsea will meet the team that is at the bottom of the standings. If Chelsea still doesn't win this match, then there is no hope for Chelsea.