That's a good enough explanation for the mood of the Man City fans and it's probably a much easier one to say. The era of success is different and it's going to be replaced because it's impossible for one team to dominate all the time. Pep Guardiola has given everything for Manchester City and now he's got a problem that could see him out of Manchester City. It is natural for people to say that and even Manchester City fans themselves express different feelings when their favorite team is in decline like now. Football is like this because it is impossible for a team to maintain great success for every season and maybe only Real Madrid is the only team that can prove that, but in some capacity they also lost the opportunity to perform better.