There's always the difficulty of being able to recognise that as a lamen. Mediocre sales people are often transparent to anybody who listens to them and is abl

There's always the difficulty of being able to recognise that as a lamen. Mediocre sales people are often transparent to anybody who listens to them and is able to ask questions. A mediocre engineer "blinds with science" and is very hard to identify without some amount of specialist knowledge.