Yes and no.
Yes, we should be expecting to challenge for the league every year and go into most games expecting to win.
No, we shouldn't suddenly want to sack a successful and promising manager when the above doesn't happen
We're a spoilt fanbase at the moment. Success happened for us so quickly due to the amount of cash that Sheikh Mansour put in that we've lost all patience for even a tiny bit of failure. Everybody fails, even Barca lost games when they were the greatest football team ever and didn't win the CL every year.
We want everything now, NOW, NOW and we forget how almost every team in the entire world including some "giants" of the game would swap places with us tomorrow.
We've become incredibly self involved over the past three years, nothing is ever good enough, nothing is an acceptable deviation, everybody needs to be punished and we must make sweeping changes for every tiny setback.
It's wearying as a fan but more than that it will bring us nothing but more frustration and failure.