Ancelotti's side drew their first three Ligue 1 games before getting a first win away at Lille ahead of the international break.
He told Canal+: "I would set up a team that plays good football, a competitive team to give a good show and a good image in both France and Europe.
"It's not easy, you cannot do it in a week or two. I want to use four defenders, three midfielders and three forwards whose positions can change.
"Sometimes with a centre-forward and two players behind, sometimes with two strikers and one player behind. In football today, the problem is depth of attack because it is easier for an adversary to control a static player."
PSG host Toulouse in their next match on Friday, September 14, looking for their first home victory of the season.