Really embarrassing for Chelsea. 
Nottingham Forest was able to defend well after they managed one goal from Elanga, Chelsea's attack didn't really mean that their chances were many but they couldn't find a gap in Nottingham's defense. I see Chelsea's style of play is still chaotic and the players are not very creative.
It's hard to imagine if they met Man City, Liverpool or another big team they wouldn't be so consistent, sometimes this match was bad but the next match was good.
Chelsea still hasn't found the right solution.
Even though Chelsea has a new owner, a new manager, a new team, but Chelsea is still the same. But they can't destroy a team that defends too deep. The first goal went in, I knew Chelsea would lose. With this defeat things looked dismal for Chelsea this season, they couldn't even beat Nottingham Forest, a team that spent most of its time at the bottom of the table. So who can Chelsea beat this season?Nottingham Forest was able to defend well after they managed one goal from Elanga, Chelsea's attack didn't really mean that their chances were many but they couldn't find a gap in Nottingham's defense. I see Chelsea's style of play is still chaotic and the players are not very creative.
It's hard to imagine if they met Man City, Liverpool or another big team they wouldn't be so consistent, sometimes this match was bad but the next match was good.
Chelsea still hasn't found the right solution.
I want to say The defeat was purely due to Mauricio Pochettino, wrong formation, Chelsea played four at the back in pre-season and goals were scored, the league started and he started to change it, two attacking players against Forest at home? Mauricio Pochettino better fix it soon or things will take a turn for the worse quickly. This is very frustrating because this team has so much potential and raw talent, players just need to be played in the right positions.