Talking to Time Magazine a few years back, Peter Drucker got to the heart of things: “I will tell you a secret: Dealmaking beats working. Dealmaking … - Warren Buffett

During 1983 our book value increased from $737.43 per share to $975.83 per share, or by 32%. We never take the one-year figure very seriously. After all, why should the time required for a planet to circle the sun synchronize precisely with the time required for business actions to pay off? Instead, we recommend not less than a five-year test as a rough yardstick of economic performance. Red lights should start flashing if the five-year average annual gain falls much below the return on equity earned over the period by American industry in aggregate.

For example: (1) As if governed by Newton's First Law of Motion, an institution will resist any change in its current direction; (2) Just as work expands to fill available time, corporate projects or acquisitions will materialize to soak up available funds; (3) Any business craving of the leader, however foolish, will be quickly supported by detailed rate-of-return and strategic studies prepared by his troops; and (4) The behavior of peer companies, whether they are expanding, acquiring, setting executive compensation or whatever, will be mindlessly imitated.

A CEO’s behavior has a huge impact on managers down the line: If it’s clear to them that shareholders’ interests are paramount to him, they will, with few exceptions, also embrace that way of thinking.