Chelsea have made quite a number of changes to their squad from last season, it is normal that after making many changes that they team will need time to play together and build good team chemistry so I think Chelsea are currently lacking that connection between the players especially the incomings. Let’s see how quickly and well they can blend in and make maximum impact this season.
Chelsea players are getting comfortable playing together after their first league game performance where they couldn't score they came back stronger against West Ham United and score good number of goals now talking about the connection between the players I believe they played together during the friendly's and the preseason games they ought to have gotten used to each other by now but then if they keep playing together with time they will understand themselves better and their connection will help them to have a good outing this season. They have a bigger task ahead of them the EpL and the champions League they can't fail to understand each other because that's the only way they can have a good performance in the competition this season.