Yeah but the statement in question is (quote) "you can be EQUALLY successful as an introvert" - and we're talking about whether people should, generally, strive to be more extroverted at work. That there exists a successful introvert is not in question and isn't a good criticism of the article to me.
Is it really not clear from context? "If introverts made an effort to be more extroverted, would it make them more successful?" Success I don't know what OP meant, but pay, seniority, I don't know that it changes the answer much.
