Just recently, when Maresca came to Chelsea, he said that he had too little time to change this team, and to achieve great results they will need more time, but apparently the team is progressing much faster than he thought. Now Chelsea have the best attack in the Premier League, but between them and Liverpool 7 points is a lot and this is only a third of the season, and Arsenal and City will not let them go so easily.
Chelsea is an example that can improve after a bad season, Enzo Maresca with a good job managing Chelsea and now he proves to be in 2 of the table for a while although it is a little far away from Liverpool, of course the competition will remain tight where Arsenal and Manchester City will try to catch points, but looking at Chelsea's performance they can compete again.
Is true that Chelsea has improved but we should not give all the glory to the current coach because I remember pochettino being the one that laid the foundation to this very growth. It did not just happened miraculously, it started with pochettino until the ending of last season when Chelsea started to play very well and luckily the New coach has to maintain the tempo and that is why we have a beautiful chelsea now.
That is also the kind of reformation that Manchester United needs because they have struggled for some time and I believe under Armorim they can achieve it.