It is the rare executive whose business does not encounter a setback at some point. When that happens, it’s easy to spend too much time and energy focusing on what happened instead of what should happen next. Venture capitalist Ben Horowitz of VC Firm Andreesson Horowitz relates a story about advice that New York Giants coach Bill Parcells got when his team seemed beset from all sides. Check out Mr. Horowitz’ blog post “Nobody Cares.”