The Obama administration is expected to move forward soon on its plan to provide overtime pay protections to low-salaried managers who don't qualify for them. The move could affect millions of workers. It is aimed at addressing what the White House says is an erosion of the rules that established the 40-hour workweek -- a "linchpin of the middle class." The way it works now, companies can avoid paying OT to any full-time workers making as little as $23,660 -- or $455 a week -- by classifying them as "exempt" and paying them as salaried employees, rather than hourly. That means when they don't get overtime pay even if they work more than 40 hours a week. And it's not just managers in lower-paid jobs in this bucket. Exempt positions also include administrators and sales employees, among  others . The expectation among   policy experts is that the  Department of Labor  will propose raising the $23,660 income threshold, most likely to somewhere b...