Imagine an America in which employers faced steep fines for failing to interview a sufficient number of minority candidates for a vacant management slot prior to making a hiring decision. Even in this day and age, where Diversity rules, that might seem a far-fetched scenario. Yet for the last half-dozen years, this has been the way the National Football League has operated. And its advocates are seeking ways to expand this regime to a variety of venues - and with a strong assist from government.