People want to see entertaining football, is that hard to grasp ?
If a guy like Ranieri can bring it with a team like Leicester that was fighting relegation the year before and win the PL as a reward for it, than it is not unthinkable people question LVG who had 250 million to spend at a top club. He doesn't bring what could expected when you have had 2 years, so now he must go.
Mourinho makes the most sense to appoint as a new manager. And we will give him the same treatment as LVG, a big budget and atleast 2 years to proof himself and if he can't do any better than 5th place ad 46 goals, he'll get the same sack as LVG deserves to get.