The performance of Chelsea this past and present season is already giving me a lot of doubt if the fault is from the players or the coach, which is to be blamed or do we say the performance of every other clubs has improved significantly where as Chelsea is doing nothing to improve. Chelsea spending a lot of money on buying players we expect something better than this. Honestly from Pochettino stats i think he is not capable of handling the team into toping the table. So maybe looking into their coach would be a better option to help the team i feel they have enough squad to make things happen excluding Jackson.
Overall, Chelsea has played 1,210 matches in the Premier league and have won a total of 637, lose in 274 with a total goals counted at 2,045 goals and those are some interesting stats to know about the history and current situation of Chelsea in the league. In the previous season, the club didn't also perform well like you rightly said because they finished st 12th position in the Premier league winning in 11 matches, 11 draws and a total lose of 16 matches in the last season which left them with 44 points from a total of 38 matches.
This season, Chelsea have played in 20 matches already with just 8 wins, 4 draws and another 8 loses that is equal to the matches won and a total point of 28 right now which have kept them in the 10th position of the table. Ordinarily, one would have expected to see Chelsea at the top of the table together with clubs like Arsenal, Aston Villa, West Ham Brighton amongst other clubs but unfortunately, they did not and this seems to be a similar outcome to what we saw in the last season which is going to glad.
Yes, if you look at Chelsea overall statistics, they are indeed very good because they are able to wins more, but in the past Chelsea was an elite Premier League club, so it is normal for Chelsea to win more matches than the total losses, but unfortunately Chelsea is no longer like the elite club that used to dominate along with other elite Premier League clubs, Chelsea has now experience a significant decline in the last few seasons Chelsea has not achieved what management expected. Chelsea has reshuffled its players and bought many players this season and changed coach, but Chelsea performance has not improve and tends to be the same.
For the time being, Chelsea are getting the same results as their win rate, but I hoped that in the future Chelsea will not be like last season, where they experienced more defeated than they wons, so their ranking is in the middle. I'm hope that this season, at least Chelsea will be in a decent ranking and not worse than last season.