Dinners, golfing, activities.

She wants to read that HealthCare providers such as doctors are not really that replaceable. As managers, how do you keep providers motivated and invested in their job? I.E. Dinners, Golfing, activities. Roles providers play: Providers play a huge role in bringing in revenue (How much to work, what to prescribe, whether are you doing a good job, etc) and governing (decision making). Please let me know if any further explanation is needed. Thank you.