I run a Management Training Company, and the main thing a manager needs to do is communicate effectively. I abhor the use of acronyms as some people won't understand what is being said. The use of the latest buzz phrase is totally pointless as it is likely to go out of fashion just as quickly as it comes in.
A good manager has been given two ears and one mouth, they should be used in those proportions.
As to the other points raised here. The use of words as commas, erm, bascially, well actually. As mentiioned earlier just gives the person thinking time. They are used because people are afraid of silence. They lack confidence! When I start a meeting, people used to mill around or just chat amongst themselves. I enter, sit down, open my case, take out what I need. Then stare at someone. It is surprising how quickly the hubbub dies down.
When I give a lecture, and want to make a point, I say what it is and then shut up. Some people will shuffle around, but that point and the silence means they have got it.
The use of the word is a fashion thing that came from across the pond. They mean yes, and not I agree with everything you say totally. So why do they do it. I see someone mentioned illiteratiion earlier up the thread. While some of this is totally crass, it can be put to good use as an aide memoire.
Ergo's educational energies are never erronious.