But a good number of busy top executives wouldn't do without it.

A number of chief executives turn to their peers for advice.

The project was secret within the company, except for a small number of executives and engineers, until May 2009.

His duties will be divided among a number of executives.

A number of key executives were fired, too, to make way for a new team.

An increasing number of corporate executives would like to know.

And in the last year, a number of corporate executives have taken another step to lower their costs.

To some extent, there is an age factor at work in the small number of female chief executives.

The agency has also lost a number of other executives, including several executive vice presidents.

Most, however, are awarded to a small number of executives.