When a company is large and successful, its size can be its worst enemy, especially when it is so dominant that it lacks serious competition. A company culture that drove success in the early days can become overly codified, rigid and ritualistic over time. Over time, bold new moves become much more risky; new business models may compete with existing businesses and cannibalize their sales. Even when it’s obvious that they will someday be necessary, it’s not hard to find excuses to put them off just a little bit longer. Slowly, great companies can lose touch with reality.