rollout. Sometimes misunderstood as encouraging unmitigated failure, an essential tenet is "Principle 4: Contain the downside risk--fail cheaply."

The implied promise to employees is that the consequences of failure, if recognized quickly, would not negatively affect a person's position, job or career; a key component of a successful approach requires a corporate culture that not only tolerates but actively encourages and even celebrates failure that results in valuable learning for the