A series of in-fights and public criticism of players by Roberto Mancini - not to mention training ground bust-ups - undermined their title defence.
"Every manager is different, but the whole squad has really been enjoying his training sessions and he's made time to speak to every player," Aguero told Match of the Day magazine.
"It's not just Manuel Pellegrini's arrival, the new signings have bonded really well.
"I hope to score a lot of goals this season to win back the Premier League. Obviously my job is to score and create goals, but the team result is the most important things so I'm happy as long as we're winning games."
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