What happens later on, however? When more is expected of them that they can't deliver? The longer I have been in business, and the wider my circle of professional acquaintances has grown, the better my detection meter has become. I am not talking about the proverbial "bs" meter; rather I am referring to the professionalism meter; how expert the experts are.
I am not saying you have to know every last bit of the topic you specialize in, just that you are credible and can deal with people at a high professional level. I have seen people work a room of business newbies who cannot tell the difference and are enthralled by what wisdom the so-called expert imparts.
This does everyone a disservice, however. You can't dance your way through your expertise without expecting someone to stick their foot out and trip you up eventually. Instead of hoping they won't get caught out, these non-expert experts should know that their audience deserves nothing less than the best they can provide. If they can’t provide the expertise you deserve, you need to drop them and search for those that can do the job.