I think it will take a long time for Chelsea to rebuild their squad. This can start by bringing in a coach who is ready to build a team in the long term and also hundreds of millions of money to bring in several players that the coach wants. What is happening at Chelsea right now is really bad and I think they have to build their team from scratch. They cannot expect a miracle like next season they will be able to finish in the top four or top five. They must really focus on long-term targets.
Chelsea will need some strategic changes which may include some of their players Ben sold out and possibly a Change of coach because they seem to have their issues ranging from their tactics, players down to the coach and it's not looking like they are getting any better except theyfix these issues with their coach and a few players.
For this season I doubt if they will be able to finish top four in the premier league or even secure a trophy by the end of the season because they don't look like they have the form and the ability to do such, they have really unstable performance this season, at some point we would think they are already getting better and at the other they turn out even worse especially when facing smaller teams but with big team they try to put up a fight and probably show their prowess nevertheless they haven't done enough to earn them much this season, they need to really improve.