by Beth Braccio Hering, Special to Career Builder
Mark Gleckman has been with Winter, Wyman -- one of the largest staffing firms in the Northeast -- for more than 30 years. In contrast, his son is working for his sixth company in 15 years. While the pros and cons of each career route can be debated, one certainty is that the path of the elder Gleckman is becoming increasingly rare ... but not unheard of. Below, meet several "lifers" (by the way, most of them hate that term) and learn why they stay.