Grant conducted a personality survey and collected three-months of sales records for more than 300 salespeople, both men and women.

FORBES: Move Over Extroverts, Here Come the Ambiverts

Perhaps even more surprising, Grant found that the two extreme personality types pulled in roughly the same percentage of sales.

FORBES: Move Over Extroverts, Here Come the Ambiverts

At the top of the list, sales manager is the best job for aspiring entrepreneurs with an enterprising personality type.

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Everything about his personality and behavior struck me as counterintuitive for a career in sales.

FORBES: Tales From the Sales Vault: The Myth of the Natural Salesperson

One of the prevailing personality stereotypes we rarely question is that extremely extroverted people do best in sales.

FORBES: Move Over Extroverts, Here Come the Ambiverts

Sales and marketing leaders, like the rest of us, come in a multitude of personality types.

FORBES: Six Archetypes of Sales and Marketing