Not a very useful book. Krause simply rewords the original (substituting "Executive" for "General", or "competition" for "war", etc), without grasping the *meaning* behind Sun Tzu's words. For instance, the section on gathering information - surely the modern executive's equivalent of battlefield espionage is market research? Not to Krause, who regurgitates Sun Tzu's advice on employing secret agents (and there are many other examples of such lazy interpretations in this book).
...My humble advice to you is to pick up Sun Tzu's original work and make your own interpretations of it.