Former Manchester City manager Roberto Mancini says he has played his part in the team's success this season.
Current boss Manuel Pellegrini has been credited with making City - who have scored 106 goals already this season - more attacking.
But Galatasaray coach Mancini, who left City last summer, says it is the players he bought who are responsible.
"I'm happy that Manchester City is one of the best teams in England because I built this team," Mancini, 49, said.
"The players that score the goals are players that I bought - Sergio Aguero, Edin Dzeko, Yaya Toure, David Silva and Samir Nasri."
After Mancini's departure, City recruited the likes of midfielder Fernandinho and striker Alvaro Negredo, who has already scored 23 goals in his first season.
Pellegrini is targeting an unprecedented quadruple of Premier League, Champions League, FA Cup and Capital One Cup.
The Chilean boss has secured City's path to the knockout stages of the Champions League, something Mancini failed to do in two attempts.
But after reportedly falling out with some of his players last season, he said he held no bitterness towards City over his sacking last summer, just days after his side were beaten by Wigan Athletic in the FA Cup final at Wembley.
"When you work, you know you can have some problem with the players, this is normal because the manager wants the players to work hard, play well and the players should understand this," he said.
"When you change the manager, it is better maybe, because you change the way to work.
"I think Pellegrini is doing a good job but what is happening now at Manchester City, we did three years ago. It's the same."
The Italian added: "I'm very happy about what I did in Manchester, I love the Manchester City supporters and I had a fantastic experience.
"After four or five years, maybe the manager needs to change team. I did my job, I built a fantastic team, we played fantastic football and we didn't win last year only because Manchester United bought Robin van Persie.
"He was the difference, if not I think that would have changed the history in Manchester over the last three years. We played really good football and now they are continuing to do this."
Mancini said City's form this season means that Manchester United need to restructure their squad if they are to continue to compete at the top of the Premier League alongside the likes of Chelsea and his former club.
"After many years, it's the time to refresh the team," he told BBC World Service. "Chelsea changed and bought some new players, City bought four or five new players."
But he also said he has sympathy for United manager David Moyes after their disappointing start to the season.
"He worked for 10 years at Everton and he did a really good job," said Mancini. "He is a good manager and I don't think he needs my advice.
Former Everton boss Moyes replaced Sir Alex Ferguson last summer following a period of unprecedented success for the club.
Mancini added it would be "difficult" for anyone to follow Ferguson and lead a club used to competing for major titles every season.