Pearce had no resources, and he kept us in the premier league. Wasn't pretty and I can understand why many people hated the Pearce era, but it was an achievement.
Sven came in and had plenty to spend, it would be silly to judge him against the same standards as Pearce as he should have improved things. And he did, from 16th (I think) to 9th, and some great football to watch.
Hughes came in and had more resources in one season than any manager in history (total guess). Again, we shouldn't be judging him against the same standards as Sven, we should have done better. As it is we've gone backwards in terms of wins, losses and draws and at best have stayed the same in terms of league position.
Stupid suggestion that only part time City fans aren't happy with Hughes, but stupid suggestions like this seem to be the only defence people have for Hughes. And that says a whole lot in my book.