Start with yourself: are you a high performance manager? 

Often you're dissatisfied with your employees and think there is something wrong with them, when in fact they're just following your lead.  Make a list of what displeases you with your employees and how works gets done, and take an honest look at your own work practices. 

• Are you a good planner? 
• Do you set goals and then stick
  to them to the finish?
• Do you say what you do, then do
  what you say? 
• Are you always on time? 

You could ask your own boss or
colleagues for feedback.  But your
people will follow your lead.

Now look at your team: one important aspect of a performance culture is that you need to have the ability to treat people differently.  Often managers feel obligated to treat everyone the same, and this waters down initiative and motivation. You idea of fairness leads to chasing equality, while in fact your employees are not equal. This is a central tenet that we cover in our All-In-One Workshop. 

If you're fearful of losing popularity, you might take the safe road and treat everyone the same.  Great Managers are willing to see the individual trees in the forest, and they can base group standing on individual contribution and outcomes.