Books, articles, and courses on leadership focus on what must be done to become a better leader.  We can also learn from what leaders shouldn't do.  Here's a list of what effective leaders should not do :

• Continue to do your old job in addition to your new one
• Try to do everything yourself - avoiding delegation
• Avoid making decisions
• Neglect poor performance amongst your staff
• Showing favorites
• Sitting in your office
• Hiding issues
• Trying to know everything and not admitting mistakes
• Being satisfied with the status quo
• Not continuously improving the lab, staff, and yourself
• Not taking time to refresh

Use this list to sharpen your leadership skills and make positive changes to benefit your and your staff's success.