Original Article: http://www.nbcnews.com/business/how-call-hours-are-hurting-part-time-wor…

“John Challenger, CEO of Challenger Gray & Christmas, the Chicago-based outplacement and career transitioning firm, believes we’ll see more of this.

‘Companies, especially retailers, are looking for ways to bring in employees as they need them—to cover the traffic but not get caught with too many people standing around,” he said. “They want the ability to be able to staff up or down, depending on what happens.’

Challenger said there are now three levels of employment: full-time, part-time with specific shifts and on-call. And, he said, people move between them all the time.”