Even though the season is still early, we already know which teams will succeed and which ones won't. It wasn't as though Chelsea didn't have the chance to score more goals; rather, it seemed impossible and they were unable to score even two goals despite having numerous shots on goal. Additionally, after Jackson's first goal, there were no more goals scored, demonstrating that, Chelsea has returned to their old habit of not being able to score and their lack of consistency there is a lot of work for them to do and they were over exited because of their first game. In every game, we might see different improvements from different players, and if it was because of the goal that Jackson scored and that is what you are calling improvement then there is a lot for jackson to learn, because he as not been consistent, and Chelsea played crystal palace well but still did not end well for them, its Chelsea problem so they should focus on how they can fix their problem, arsenal is my club.