I am NOT asking for anyone to be fired; I'm asking that the stations assume a responsibility to assure a quality on-air signal.
They ARE responsible. They have a very organized management structure. But mistakes happen for lots of reasons. If a spot doesn't run, the advertiser is owed an explanation. He paid for that spot, and he wants a refund. That's one example of responsibility. If a syndicated show has problems, and its the station's fault, the syndicator is within its rights to demand an explanation. So Howie's rep can demand to know why they audio in Howie's show sounds bad. There's another example of responsibility. Of course, you as a listener have no idea that these things are happening.
You have to consider how many hours are in a day. They're responsible for every minute. One of their talk show hosts says something that makes national news, and they have to answer for it. It might lead to that host getting fired. A huge storm passes through Boston and destroys the antenna. That has to be addressed. None of the things I've mentioned are among your complaints. But I'm just giving you some context.