AC Milan midfielder
Milan goes into Sunday's (Monday AEST) Serie A away clash with Udinese having won one and lost two of its opening three league games, while in the Champions League, it got its campaign under way with a 0-0 draw at the San Siro against Anderlecht this week.
After that last result - which meant Milan is still yet to score at its own ground this term having played there three times - the team was booed off by Milan fans and Boateng admits things need to improve fast.
The 25-year-old is also keen to emphasise, though, that the belief within the squad is strong.
"In the changing room, we're all calm,"
"There's quality in the squad and we all believe in this team. Sometimes we've been missing a bit of luck in front of the goal but we think we can win the next game.
"It's natural that the fans will be angry because we can do better than what we've shown, myself first of all.
"I'm not at 100% and we'll try to get better game after game".
Currently top of the Serie A table is champion Juventus, which will be looking to maintain its 100% start to the league season when it entertains Chievo on Saturday (Sunday AEST).
At 33, the midfielder is as key to the teams he plays in as ever, although Juve first-team coach
"Let's see in training in the weeks ahead," Carrera said.
"Of course he played with the national team and played many games during last season.
"It is not easy for him to play when he is constantly marked by another midfielder from the other team.
"Occasionally he needs to come away from the action to let his team-mates do their job."
Level with Juve on nine points from three games is second-placed Napoli, which is at Catania on Sunday (Monday AEST), and third-placed Lazio hosts Genoa later the same day.
Sunday's (Monday AEST) other fixtures see Sampdoria face Torino at home in the early kick-off, Inter Milan take on rock-bottom Siena at the San Siro, Roma play at Cagliari, Atalanta entertain Palermo and Bologna and Pescara go head to head at the Stadio Renato Dall'Ara.
The Juve match on Saturday (Sunday AEST) is preceded by Parma's clash with Fiorentina at the Stadio Ennio Tardini.
AC Milan chief executive Adriano Galliani has denied falling out with club president Silvio Berlusconi, despite reports to the contrary.