Consider how they presented themselves to others and the unique value they brought to the company.
Study other people who've experienced success in your role to learn about what they might have done differently. Consider how they presented themselves to others and the unique value they brought to the company. Then, if you know those people, consider how you might view them now. You might find that how you view them is exactly how they want you to see them, and you can learn how they achieved those results and apply any techniques to your own presentation.