City finished third in the Premier League after being dumped out the FA Cup in the semi-final by Arsenal and the Champions League in the Round of 16 by Monaco.
And English league rookie Guardiola was not happy with the performance of his squad but insists he won’t be changing his approach.
“I don’t think anyone regarded it as a season of transition, if you don’t win a trophy it is a disaster,” Guardiola told a Rory McIlroy charity event.
“But we still won’t begin this season thinking we need to win that trophy and this trophy. You’ve got to try to enjoy the process of building a team and keep striving to get better every day. What’s important is that the supporters know that when you go out you put your heart on the pitch.
“That’s what you can guarantee but win? No. You want to win, of course, but so do the other ones.”
Guardiola spent Tuesday night taking part in a Q&A for The Rory Foundation with golf superstar McIlroy and actor James Nesbitt in Belfast.
The Spaniard was out numbered on stage, with the Northern Irish duo both supporting rivals Manchester United.
Guardiola refused to reply when asked which Red Devil star he would like to sign, instead opting for his “favourite player” former ace Paul Scholes.
However, he was more open when his time at Barcelona was brought up as he waxed lyrically about former boss Johan Cruyff and his megastar prodigy Lionel Messi.
“I think Cruyff was the most influential man in the history of football. Every match it was like reading a book, he told you why the pitch felt wide in some matches and narrow in some others.
“He brought the philosophy to Barcelona that still carries to this day. And if he brought the philosophy, Messi put it into real time. Why is he the best footballer I have ever seen? When the guy from above saw him, he just put a tick next to everything.
“He’s not only got the ability to see everything on a pitch, he scores three goals every game. He doesn’t say much but he gets the message across to the manager, his team mates and the spectators that he’s there.
“Knowing that they relax, they know that at some point he is going to make a dribble and score or make an assist. He’s the ultimate competitor, there’s nothing he likes more than cup finals or playing Real Madrid.
“If I have one piece of advice, it is that when Barcelona are playing, make sure you switch on the television. Because when he is finished playing, it is going to feel like a desert.”