Working with more than 7,000 leaders since I started my consulting business in 2004, I've seen every kind of communication you can imagine.
One dichotomy I see in nearly every group: one person, expert in the field, will speak conservatively, constantly underplaying their own valuable statements.
Another person, with much less experience, will confidently express thoughts, ideas and facts that sound good, though they are often wrong.
Please select this link to read the complete blog post from John Millen.