I think you're referring to Colonel Bob Sheridan. If so I absolutely agree with you. I'm not bothered so much by his shouting as I am his complete lack of knowledge about MMA. I was watching an older bout from Costa Rica I think when he was working with Paul Lazenby. The fighter got into the full mount and Sheridan said, "And now he goes for that North/South mount." WTF? This is one of many possible examples.
Why can't they get a guy that knows what he is talking about AND has some charisma?