He said: "I am very pleased with progress and the results. But Tuesday is the Champions League. Our first win was against Valencia after we lost two points against Rosenborg.
"We are now in a good position but we want to finish it and qualify as soon as possible.
"I think, in every aspect of the game, we have improved. Our defensive game is better but especially the attacking football. We are more organised and have done that in a short space of time.
"We want to keep progressing in these things. In the last few games, we have done a good job.
"I think the team has to have the credit. This is more important to me at this stage. To do so much positive things in a short time, the credit needs to go to everyone.
"For me, it is only the beginning of the process. But you can give a big credit to everybody at Chelsea.
"It is not easy to do such a thing in a short time. But if you have players, management and staff, who are so good, it is much easier."