Fans almost always have unrealistic expectations and when those expectations aren't met they blame the coaches. Fans almost always blame the offense first, too, when usually bad teams are bad at defense. The Kings right now are bad at defense.
I'm a dumb person and so my NFL team is the AZ Cardinals. Fans were convinced, convinced the team was going to be good this year and so instead of realizing they have an old, ill equipped roster they started yelling about the OC when guys can't get open, the qbs can't get them the ball and even when they do they drop it, and even worse: they get pushed around on defense and make glaring mistakes in coverage.
The Kings are giving up point blank chances, never had a lot of offensive talent to begin with and guys that produced in the past are nonexistent so far. The Kings also have serious salary cup issues. I hope things turn around with these guys and it would be great if the mob was right and the coach was the problem, because if he isn't then it will be even worse next year when all these guys get a year older