Answer:
Henry Mintzberg has listed three main rules,
1, Focus on verbal communication rather than written communication.
2, Work more hours and prefer late sittings.
3, Managers work will be recognized if they have fragmented and variety of tasks.
Step-by-step explanation:
The first finding can be supported by the technology and social media as now in todays era most of the business meetings and conversations take place on either phone calls or through skyype.
The second finding about the Henry Mintzberg statement is that managers are more productive if they work with their own routine. If managers are given strict timing and intense work place they are less productive as they feel mental pressure which disturbs them and the quality or output is affected.
The third finding is managers can maintain brevity even by defragmented work as the efficiency is more important factor.