I went to my first City game the year before Joe Mercer showed up, and I've seen great teams, good teams, poor teams and absolute dog shit teams. Back in the day though, when we were garbage, expectations were low because we all knew how limited all (or certainly most of) the players were. If they tried their best, we understood if they were not good enough.
At the start of this season, it was arguable we had the best squad City have ever had, and the best in the country, and the first few games seemed to confirm it. We looked like an absolute knocking bet for the title, especially as Chelsea were dire and the other theoretically 'leading teams' well below us.
Somehow, we have thrown that away. It's not the draw with Arsenal - a reasonable result in itself - but the fact we haven't beaten a single top team - plus we have thrown away points against the likes of Aston Villa, who Oldham could probably have given a good game this year.
Personally, I'm not surprised fans are unhappy and looking for someone to blame. I don't hate Pellegrini, he seems a nice guy, but the truth is the buck stops with him. Because that's how football works.