Okay, maybe with live news on a breaking event we can forgive some camera instability or zooming in & out to search the scene. But in a studio, there is no excuse. EVER! In school, live or live-to-tape productions are being done by people who aren't supposed to know what they are doing. That's why it is school. That is why the director could claim it wasn't his fault. Whoever messed up did it fine during the rehearsal, so the director reasonably expected them to do it again. Everyone is anxious, so when audio fades the wrong mic, we understand.
However when you're paid to do it, there are no excuses. The director is in charge and responsible. The director is the only individual in the position see that it all works together. The director is telling everyone else what to do, if they aren't doing it they don't have a job next time. But it is still the director's fault if the program isn't perfect. That's the thing about being a director. If the show turns out great, it's due to a team effort. If there were problems, they are the director's fault. If we're looking into someone's ear instead of their eyes, the director let that happen. Who else would be responsible? If a microphone fails, the director is responsible for keeping the show rolling and hopefully doing it so the viewers aren't aware of a problem at all. And all this it because the director is in charge & responsible.
Now as far as which elements of a program are most important, there aren't any. Either it is all done right and it's a "good TV program" or you are making an inferior production. In so far as you are producing programs to show to your friends & family (your supporters) here are the priorities. The audio has to be audible w/o concentration. If you do nothing else, your supporters will give you props for good TV. Mainly because they expected the sound to be like most home video, recorded using an on-camera mic too far from the audio source. The next thing they notice is improvements in the image. Other than cutting out junk between shots, people don't care about editing. They want it short and audible. Which makes sense since very few people do much other than make radio programs with pictures. There is no video editing, just audio editing using video. Now once you've got sound they can understand and a picture that let's them recognize the on-camera talent, if you add some cut-aways and close-ups. Those supports will start saying things like, "It looks like real TV." Now put that show on cable and you'll soon hear a deafening silence. If you put it on a video sharing web site, stuff that looks like real TV will get a few views, especially if it runs less than three minutes. But if your show runs over seven minutes, research indicates less than 10% of the viewers will watch the whole thing, no matter how great it looks & sounds. Only your supporters will actually watch a full show.
However, if you shoot something with decent camera work & keep your edit rate above six shots per minute (and don't screw up the audio) you'll start getting strangers interested in your shows. Personally, I don't consider my supporters opinions of any particular value. I expect them to think my work is "just like real TV!" But my first professional job was to produce videos that would get people watching & thinking about the city's new cable access channel. It wasn't long till I was working out exactly what got strangers to watch my videos. Pretty pictures (with a moving shot) edited at more than six shots per minute drew people in. My audio? I didn't need anything special. People were attracted to the visual excitement and ignored videos with audio driven stories. This is exactly the opposite of how my supporters reacted to my videos. My most popular video, the one strangers recognized me from, was of me washing the dishes. The audio consisted of dishes clattering intermixed with a couple of songs to provide a beat to edit to. But when viewers were surfing the dial, this video caused them to stop & watch. But I never met anyone who recalled seeing the videos I made with a storyline, even when they had seen the dish washing video.
Now maybe I have a different standard for what constitutes quality productions. And I do expect professionals to meet higher standards. While I'm content to teach my students how to control the technical details to make their videos more watchable by their supporters, I expect professionals to move beyond technical considerations and address issues of production theory. Unlike those incompetent local news shows that are doing crappy lighting and broadcasting ear shots. Technical competence does not equal production quality. Ansel Adams was not a great photographer because he was, like, the best photo printer ever. His vision made him great (and achieving it required him to achieve technical perfection.)
Now I would love to discuss production theory, it is what makes one show better than another. It is why one lighting set-up is better than another. And it is why some directors win Emmey's while others hack their way through a newscast.