Chelsea are one of the teams in the EPL who are very serious but the manager doesn't have the balls to admit it and I believe he has made the player to accept it that they're not in any way qualified to be title contenders. Is a shameful thing to say that a club you're managing are not yet in the title race even when you see how awesome you team have been doing even better than the current Champions and the league leaders. I think Enzo Maresca learnt a lesson from the other coaches who got fired, he noticed that the Chelsea club and the fans have this kind of pressure they inflict on every new manager to always take them to the top even when they know is not immediately it had to happen. Enzo is not really using mind game per say but he is avoiding being pressured and he also wants the players to play without pressure and he feels it will help them do well.
I think it's part of Enzo Maresca's strategy, he doesn't want his players to bear the burden of what he says in press conferences. He chose to lighten the mood and the players had no burden when playing. I think any coach would want to win a title with his club, but Enzo preferred to be humble so that his players would not be burdened. Even though Enzo didn't say it directly, anyone can now judge which direction Chelsea are heading.
Yes, indeed, Chelsea has played very well this season since being coached by Enzo Maresca and in every match Chelsea has always appeared impressive and in the last match against Brentford Chelsea's performance was also very impressive because Chelsea were able to get points as a result of their victory against Brentford with a score of 2-1.
So yes, it is strange to see Enzo Maresca still think that Chelsea is not worthy of fighting for the title even though their performance is good.
It seems that it is true that Enzo Maresca has a humble nature, but in this way the players will definitely not be burdened because usually if a player feels burdened, of course sometimes there are times when it has the potential to make a team's performance less good because there is tension in his soul. However, this way of course the Chelsea players will play with enthusiasm and will not be overwhelmed, which ultimately makes the Chelsea players' game more enthusiastic and calm. Yes, to be honest, I like the technique used by Enzo Maresca and we'll see what happens next.
but yes, of course, with Chelsea being in second place in the standings, like it or not, Chelsea can be said to be a strong candidate to have great potential to win the title or reach the runner up position this season.

Source:
https://www.ligaolahraga.com/amp/chelsea-di-posisi-kedua-enzo-maresca-pilih-tetap-rendah-hati