Luiz Felipe Scolari is happy with the progress he has made during his first month at the club after the Blues arrived back from their Asian tour.
He told Chelsea's official website: 'Now I have more confidence. I play four games and I know my players better. These two weeks with the players are very important to me.
'I know the players very well now, their reactions. I have had one month with the players, every day together. Now I have more choice than before.'
Scolari also hailed the attitude of his players, adding: 'They surprise me in one question - they are very professional. I never saw in my life players more professional than these players. Brilliant.'
Despite winning the Premier League title twice under Jose Mourinho, Chelsea were often criticised for a negative style of play.
That continued under Avram Grant last season. But in revealing his tactical plans, Scolari implied that may not be the case this season - while the 59-year-old is also likely to prove one of the more colourful Premier League managers.
'(On the tour) I started three games as 4-4-2 and at half-time I changed to 4-3-3 - which was normal for Chelsea before - and I looked for the reaction from the team,' he said.
'I will try in the next 10 days one new system for a few moments in each game. But normal for us now is 4-4-2 and 4-3-3. They play not bad, and I think this is the situation in the future.
'I am involved with the training and in the games I talk with the players and I talk with the bench.
'It's difficult for me only to look, see and not say something. They accept this, and I think they are receptive.'