The club have have splashed £217m this summer as Guardiola gave his squad what he insisted was a much-needed injection of youth.
Defenders Benjamin Mendy, Kyle Walker and Danilo all arrived at the Etihad along with keeper Ederson and midfielder Bernardo Silva.
Guardiola claims the new boys will compliment his existing squad and improve on last season’s third-placed finish.
“If we do something good this season it’s because we were together last season,” said the City boss.
“We know better, and I know better, and they know me better, and that’s why it’s easier.
“We cannot forget that when we do something better than last season it’s because we’ve been one year together.
“Hopefully the work we did last season - being champions was not possible - we can see it this season, because the work is done, and the new players that come in they have to adjust to the way we want to play.”
Guardiola was criticised at times last season for his total commitment to attacking football.
And the Catalan insists he will stick to his principles ahead of City’s opener against Brighton.
“It’s completely the same, because it’s the same manager. The difference is the quality of the players,” Guardiola explained.
“I think we will try to attack more fluently, and more times maybe this season, but it’s a process to do that and sometimes you need a little bit more time.
“Last season, in the early period, people know how fantastic we were, we won 10 games in a row.
“We try to make a good build-up, try to do high pressing, monopolise the ball, move the team through the ball, attack outside and inside.
“Of course now the full-backs are younger, they have energy in their legs and we are going to use them. Kyle is so energetic, Mendy is such an energetic player, and Danilo too.”
Guardiola also insists that despite taking City’s expenditure to £217m he has actually saved the club money.
The 46-year-old believes the record breaking £200m switch which took Neymar from Barcelona to Paris St Germain has subsequently inflated the market.
“The club was clever like that because we anticipated what we needed,” he said. “The fact that we signed earlier helped us avoid signing players who are so expensive like now. We go to sign and other clubs are always going to ask us for more.”
Guardiola also insists City’s spending this summer was out of necessity and there will no similar splurges in the future.
“Hopefully next season I will be here and we are not going to spend how we spent this season,” Guardiola added. “We needed to do that because it was one of the oldest teams in Europe not just the Premier League and we need to change it.
“We were not able with those players to find a solution. But the solution is not changing players every season.
“In the next three or four years Manchester City will buy one, two, maybe three players.
“The group of players this season are going to stay here for a long time.”
