There are many things if we consider to set an angel to say any club that now they are strong or not. The main thing is the improvements to the betterments in the Chelsea team which leads them to success. Their proper team work and their efforts have been shown in their performance. If the purpose was only to criticise someone then there are a lot of things on the basis of we can make a lot of critics almost to every club rather good or bad. But i think as viewers and as fans we should praise those efforts which really come from struggles. Chelsea's performance got so much better and we really enjoyed it. And i'm sure where the point Chelsea team is now standing they further work hard to improve and to maintain their performance.
I also agree with you about Chelsea continuing to improve its performance, of course in many ways, including recruiting young players and among these strategies there may be an opportunity to improve, especially in its team, with the existing assessment of course the long-term goal is what they are thinking about and as fan I see that this is the right decision that will take the team in the direction it should be.