Here's my list of "old school" practices you ought to chuck, and "new school" practices to champion instead:
1. Out: Micro-management, or the need to control every aspect of your company. In: Empowerment, the ability to give your people some rope--even rope to make mistakes without blame.
2. Out: Management by walking around the office; it is no longer enough to be visible. In: Leadership by watching and listening, engaging in conversation, implementing the ideas presented to you, and distributing the results.
3. Out: Pretending you know everything. You don't have all the answers, so why try to make people think you do? In: Knowing your leadership team members and trusting them. Choose great people who have the right skills and fit the culture. And get out of the way.
Via Don Dea