We like the outgoing and expressive guy. He gets the job, the position, the girl, the accolades, the reputation, everything. We value the way people express themselves more than the competence they possess.
But wouldn’t it be better for your company to hire a competent person even if he doesn’t appear as confident on the outside?
Confidence without competence is misguided zeal.
While confidence is nice, competence is essential.
Don't beat yourself up if you're shy. Work on being competent and let the better bosses hire you.