The Majority of a Manager's Time Is Spent in Meetings

The majority of a manager's time is spent in meetings. What should a manager do to make efficient and effective use of this time?

A) Be flexible in agenda setting; sometimes new things just come up during the meeting and discussing it now would reduce "gearing up" time later
B) Don't keep minutes; they waste time and no one likes to take them
C) Be flexible with the ending time of the meeting so that the tasks can be accomplished
D) Insist on subordinates' suggestions to problems so that the manager may choose among alternatives rather than generate his/her own