This forum sometimes would be funny if it wasn't so sad, really. We are on a loop of the same "arguments" every single week. Just by going back a couple of pages here you can see some of the same criticism thrown the manager's way.
Let's start with this quote. If "heroes wouldn't pull stuff out of a bag neither Mancini nor Pellegrini would have won a title". I guess I have to agree with this poster, as generally managers don't have access to the pitch though I'm sure more than a few managers would like to try to kick the corner and score it themselves as well. As anyone that has every dealt with personnel/staff knows, you are only as good as the "team" you manage... this is true in football as well as any office in the world. If in doubt, think of Guardiola's Barcelona. Many people they called Guardiola Messi-dependent. Yes, even the best manager in the world was criticised by the Barca faithful as depending "too much" on his best player. Not that the rest of the Barca squad was any bad, mind you.
So, what is the backbone of City? A poster wrote this list, which I think helps:
Joe - Consistent after being dropped last season. Out a few games due to injury, but let's say consistent.
Nasri - Injured all season.
Clichy - Injured all season. Started 1 game.
Silva - Injured, still not fit.
Aguero - Injured repeatedly, still not fit. Doing very well when fit.
Yaya - Fit.
Kolarov - Struggling.
Kompany - Can't remember the last time he was fit.
Zabba - Injured.
Here's another common criticism, our defence is awful, which I think can be somewhat agreed. Who's our most consistent defender right now? Otamendi. The PL rookie. It turns out English fans are always lauding the Premier League as the best in the world and that it takes a while to get up to par with its rhythm, but we are asking the PL rookie to be the backbone of a defence that features Mangala as a sidekick. No wonder Kolarov is struggling more than usual... if only we had a more defensive minded left-back. Oh wait, Clichy has played a single game all season. But we mustn't worry... we have our captain there somewhere and his reliable and consistent right-back "hero" Pablo Zabaleta. Yes, they are in the stands mostly, sidelined with lengthy injuries.
Another common criticism is how "scripted" his substitutions are. Pellegrini should know better by now, the lazy sod. City fans want the touch a genius thrown in from time to time, add some variety there (offensively, of course, don't you go trying to touch the back four). How about going with a false-9? Done it. 442? Done it, but let's not get started with telephone numbers or we might go back to 451-never-loses argument which were the bane of the forum the last 2 years. Maybe use the so, SO expensive squad players on - like Nasri (injured) or Bony (god forbid). Put in the youngsters then. 20 minutes all right? Too much. 5 minutes? The kid should have started. And so it goes...
Finally, someone commented that if Pellegrini was managing Leicester, they would be struggling with relegation. If only I had a way to prove him wrong? How about Malaga? He picked them as they were odds-on favourites to go down in Spain and took them all the way to CL Quarter Finals, 2 minutes and 2 unlucky decisions from semis. Have you heard about those late stages of the CL yourself? You might this year, if only this awfully managed team were still alive in the CL (or any of the other competitions for that matter). Hold on, I think that's the case.
So yes, Guardiola might come next year (which I think would be a fantastic move), but "stupid" is not going anywhere apparently.