Change of the coach is surely having big blunder by the new management of Chelsea which is not going down in Premier League and Champions League spot for the last four is also not favourable for them because suddenly things going down badly, and they have no suitable strategy which helps them for having better result and improvement in performance as in start there were rumours Graham Potter could be on driving seat and things could be not difficult for them in coming season for having good result and better spot but nothing positive happening with most chances we will be able to watch them with poor end of this season and new dilemma which is surely not good for the management.
Sincerely I also think so that bringing in Graham Potter was not such a good idea after all. They would have been more patient with Thomas Tuchel and supported him to get the team back on track but they opted to go for Potter who showed promising signs at the beginning of his take over and slowly declined and the team are back to losing games again. We shall see how things turn out when the league resumes.