For ParkerBeanCurdRN,BSN answer for your first question ( How will the manager lead the group?) for me ,the manger lead a group by asking the group's idea or include the group discussion the decision making, brain storming with in the group. answer for second qusetion (In what areas should a manager lead a group?) the manager should lead all general area of the group answer about your example : collect the information why turn over it's high, then make a changes on what the result or the causes of increase of unsatisfied staff. thank you..:)