Roma coach Rudi Garcia says there is still for improvement after yesterday's 2-0 win against Cagliari.
The Giallorossi scored two goals in the first 15 minutes of the game as they join Juventus at the top of the Serie A table with three wins in three games.
"We still have to improve," Garcia told reporters after the win.
"There are always areas where to improve, but I liked how we controlled the game and how we scored early.
Striker Mattia Destro opened the scoring for the Giallorossi but was unhappy after he was substituted in the second half.
"I will certainly speak with him [Destro]," Garcia said on the substitution.
"I am happy for his game, I don't know if he was upset but if he was it's a good sign, it means that he has character.
"But I didn't see anything, you have to ask the player."
25-year-old Mapou Yanga-Mbiwa played the full 90 minutes for Roma and Garcia believes the midfielder showed character and maturity.
"I am happy for Mapou," Garcia explained
"He made his way into this team in the best possible way, he settled down already. He showed character and maturity."
